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Instructions for authors (1983) |
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Dalton Transactions,
Volume 1,
Issue 3,
1983,
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JOURNAL OF THE CHEMICAL SOCIETY, DALTON TRANSACTIONSInstructions for Authors (1983)co1 .o2.03.0INTENTSGeneral Policy1.1 Conditions governing acceptance1.2 Notes and Letters1.3 Submission of articlesAdministration and Publication ProcedurePresentation of Papers3.1 Organization of material3.2 Brevity3.3 Linguistic and typographical conventions3.4 Formulae and figures3.5 Presentation of experimental data3.6 Authentication of new compounds3.7 Bibliographic references and footnotes3.8 Nomenclature3.9 Units and symbols3.10 Notes for typists4.0 Deposition of Data: Supplementary Publications4. I Preparation of material4.2 Deposition4.3 Action by the Society4.4 Availability5.0 Publication of X-Ray Crystallographic Work5.1 Presentation of crystal data5.2 Atom numbering5.3 Atomic co-ordinates5.4 R-Values5.5 Structure factors5.6 Thermal parameters5.7 Diagrams6.0 Publication of Theoretical and Computational PapersAppendix.SchemeIUPAC Publications on Nomenclature andSymbolism1.0 General PolicyThe Journal of the Chemical Society is a medium for reportingselected original and significant contributions to new chemicalknowledge.Articles which do not present original work (e.g.reviews) will not normally be considered for publication inthe Journal.All contributions are judged on the criteria of (i) originalityand quality of scientific content and (ii) appropriateness of thelength to content of new science. Thus, papers reportingresults which would be routinely predicted or result fromapplication of standard procedures or techniques are unlikelyto prove acceptable in the absence of other attributes whichthemselves make publication desirable.Although short articles are acceptable, the Society stronglydiscourages fragmentation of a substantial body of work intoa number of short publications.Unnecessary fragmentationwill be a valid reason for rejection of manuscripts.The Journal is published in six sections, of which five aretermed Transactions; these are distinguished by their subjectmatter, as follows:Dalton Transactions (Inorganic Chemistry). All aspects ofthe chemistry of inorganic and organometallic compounds,including bioinorganic chemistry and s'olid-state inorganicchemistry; the application of physicochemical techniques tothe study of their structures, properties, and reactions, in-cluding kinetics and mechanisms; new or improved experi-mental techniques and syntheses.Faraday Transactions I (Physical Chemistry). Radiationchemistry, gas-phase kinetics, electrochemistry (other thanpreparative), surface and interfacial chemistry, heterogeneouscatalysis, physical properties of polymers and their solutions,and kinetics of polymerisation, etc.Faraday Transactions 11 (Chemical Physics).Theoreticalchemistry, especially valence and quantum theory, statisticalmechanics, intermolecular forces, t elaxation phenomena,spectroscopic studies (including ix., e x . , n.m.r., and kineticspectroscopy, etc.) leading to assignments of quantumstates, and fundamental theory.Studies of impurities in solidsystems.Perkin Transactions I (Organic Chemistry). All aspects ofsynthetic and natural product organic, organometallic andbio-organic chemistry, including aliphatic, alicyclic, and aro-matic systems (carbocyclic and heterocyclic).Perkin Transactions II (Physical Organic Chemistry).Kinetic and mxhanistic studies of organic, organometallic,and bio-organic reactions. The description and application ofphysicochemical, spectroscopic, and theoretical procedures toorganic chemistry, including structure-activity relationships.Physical aspects of bio-organic chemistry and of organiccompounds, including polymers and biopolymers.Authors are requested to indicate, at the time they subm!ta typescript, the journal for which it is intended.Should thisseem unsuitable, the Editor will inform the author.The sixth section of the Journal of the Chemical Society isChemical Communications, which is intended as a forum forpreliminary accounts of original and significant work, inany area of chemistry that is likely to prove of wide generalappeal or exceptional specialist interest. Such preliminaryreports should be followed up eventually by full papers inINSTRUCTIONS FOR AUTHORS (1983)same as that in a full paper. Investigations arising out of somelarger project but not prosecuted to the same degree areparticularly appropriate.Letters are a medium for the expression of scientific opin-ions and views normally concerning material published in theSociety’s journals.The Letter section is for scientific discussion,and is not intended to compete with media for the publi-cation of more general matters such as Chemistry in Britain.Only rarely should a Letter exceed one printed column inlength (about 1-2 pages of typescript). Where a Letter ispolemical in nature, and if it is accepted, a Reply will besolicited from other parties implicated for publication along-side the original Letter.other journals (e.g. the five Transactions) providing detailedaccounts of the work.In addition to full papers, Dalton Transuctions also pub-lishes Notes and Letters (see section 1.2).1.1 Conditions Governing AcceptanceContributions which have appeared or have been acceptedfor publication with essentially the same content in anotherjournal or which incorporate freely available printed workwill not be published in theJournalexcept by permission of theCouncil. This restriction does not apply to results previouslypublished in materially abbreviated form, as a paper presentedat a symposium, as a preliminary communication (e.g.toChemical Communications), as a letter to the Editor of someother periodical, or as a patent.Contributions are accepted by the Society on the under-standing that the authors (a) have obtained any necessaryauthority for publication, and (6) will, if requested, execute aformal licence granting the Society exclusive licence under anycopyright therein.Authors are solely responsible for the factual accuracy oftheir contributions.Since the Society reserves the right to retain all typeacriptssent to it, authors are advised to keep copies.When contribu-tions have been submitted for publication the authors are notat liberty, save by permission of the Society, to withdraw ordelay them or to publish them elsewhere until after publicationby the Society *1.2 Notes and LettersNotes are intended for the description of essentially com-plete pieces of work which are not of the length to justify afull paper. They are not preliminary communications, nor inany way an alternative to Chemical Commltnicarions for whichthere are additional criteria of novelty and urgency.The normal length of a Note should not exceed 2 printedpages (corresponding to about 8 pages of typescript, includingFigures, Tables, etc.).It should comprise a short abstract andDiscussion, but adequate experimental details are required.The quality of material contained in a Note should be the* Attention is drawn to the following extract from the Society’sBy-Laws :91. (iii) Every member who submits a paper or other communicationwith a view to its publication by the Society shall by so doingundertake :(a) that his communication has not been published and that he willnot permit its publication before it is accepted or declined by theSociety, and(6) that if it is accepted for publication the Society shall thereuponbecome entitled to an exclusive licence under any copyright therein(which shall include the right to sublicense) and that he will, if thencalled upon to do so, execute a formal licence to the Society of thesaid copyright, including the sole right to publish in any form in anylanguage and in any part of the world, the whole or any part of hiscommunication.The Council shall not refuse any reasonablerequest from an author to reproduce his own work elsewhere inwhole or in part.(iv) The Society shall have the right to retain manuscripts andillustrative drawings sent to the Society for consideration forpublication.(v) The attention of every member who submits any paper orother communication with a view to its publication shall be drawnto paragraph (iii) of this By-Law above, and any person other thana member shall be required to sign an undertaking in the terms setout therein.1.3 Submission of ArticlesTypescripts should be addressed to : The Manager, Journals,The Royal Society of Chemistry, Burlington House, Picca-dilly, London W1V OBN.Three copies of the typescript (a top copy and two goodquality carbon or Xerox copies) are required.Rapid publication is aided by careful preparation of text andillustrations and strict adherence to the format and conven-tions of individual Transactions as laid down in these Instruc-tions for Authors.Particular attention is drawn to the use of (i) SI units andassociated conventions, (ii) IUPAC nomenclature for com-pounds, and (iii) standard methods of literature citation,2.0 Administration and Publication ProcedureReceipt of a contribution for consideration will be acknow-ledged immediately by the Editorial Office.The acknowledge-ment will indicate the paper reference number assigned to thecontribution. Authors are particularly asked to quote thisnumber on all subsequent correspondence.The paper is sent simultaneously to at least two referees,whose names are not disclosed to the authors. On the basis ofthe referees’ reports, the Editor decides whether the paper issuitable for publication, either unchanged or after appropriaterevision. This decision and relevant corrments of the refereesare communicated to the author. Differences of opinion aremediated by the Editor, possibly after consultation withfurther referees, or, in the last resort, by the Editorial Board.When rejection of a paper is recommended, the Editorinforms the author, and returns the top copy of the manu-script.Authors have the right to appeal to the Editorial Boardif they regard a decision to reject as unfair.Acceptance of a paper is confirmed when the edited manu-script is sent to the printer. The author receives two copies ofproofs, together with the edited mmuscript and reprint orderform. The Society supplies 50 reprints free of charge, andfurther copies can be purchased.One corrected proof and the manuscript, the reprint orderform, and payment (if any) should be sent to the Editor.Checking of proofs is the author’s responsibility (although theEditor will carry out a further check before publication), andparticular attention should be paid to numerical data both intables and in the text, references, structural formulae, anddiagrams.An author may be required to pay the cost of any extensivechanges made by him at proof stage (other than the correctionof printer’s errors).So far as possible, essential changes shouldbe made without altering the length of the text, or at the endof a paragraph. The standard signs for proof correction setout in British Standard BS 5261 : Part 2 (1976) may be used:vINSTRUCTIONS FOR AUTHORS (1983)these are conveniently summarised in the pamphlet ‘Authors’alterations cost money and cause delay. . .’ which can bepurchased from the British Printing Industries Federation (1 1Bedford Row, London WClR 4DX). However, the authormay prefer simply to put a line through the incorrect charac-ters and write the correct version in the margin.Correctionsshould be made i n ink, clearly and without ambiguity, andany queries from the printer or editorial staff on the manu-script or proof should be answered fully.3.0 Presentation of‘ PapersEvery latitude, consistent with brevity, in the form and styleof papers is permitted, and no rigid pattern for either is pre-scribed. Nevertheless, adherence to the methods outlined inthis section is recommended unless there is good reason fordeviation. For the format of Notes and Letters, see section 1.2.3.1 Organization of MaterialTitle.-The choice of a title for a paper is of thegreatest importance, since it is from the title that the im-portant key-words used in information retrieval are taken.Not only should the title clearly and accurately indicate thecontent of that paper but also it should be as specific as thecontent and emphasis of the work permit.Brevity in a title,though desirable, should be balanced against its accuracy andusefulness.The use of abbreviations and symbols in a title is discour-aged; terms should be written out in full unless they areextremely cumbersome. However the use of linear formulae torepresent complex structures is permitted; in such cases theeditor may insert a systematic name in a footnote.The preceding part of a series must be referred to (as refer-ence 1 ) in the title in the form:Chemistry of the Metal Carbonyls, Part 81.’ Homo-nuclear Di- and Tri-metal Carbonyl Complexes Derivedfrom Dicarbonyl(pen tamethy1cyclopentadienyl)rhodium ;X-Ray Crystal Structure of [MnRh(pCO,)(CO),(q-C S H ~ ) ( ~ - C ~ M ~ ~ ) I .1 Part 80, L.J. Farrugia, J. A, K. Howard, P. Mitrpra-chachon, F. G. A. Stone, and P. Woodward, J. Chem.Soc., Dalton Trans., 1981, 1274.When the preceding part has been submitted to the Societybut is not yet published, the paper reference number shouldbe given.3.1.2 Summary.-Every paper for the Journal (includingNotes) must be accompanied by a summary (50-250 words)setting out briefly and clearly the main objects and results ofthe work; it should give a reader a clear idea of what has beenachieved. The summary should be essentially independent ofthe main text; however, names, partial names, or linear form-ulae of compounds may be accompanied by the numbersreferring to the corresponding displayed formulae in the bodyof the text.3.1.1The corresponding reference should be in the form:Examples :Reaction of [Rh2(C5Me5)2C14] with PhCFCH in aceto-nitrile in the presence of Na,CO3 gives two complexes (3)and (4) as well as some isomers of triphenylbenzene andacetophenone. Complexes (3) and (4) were characterisedby 13C n.m.r.spectroscopy and by single-crystal X-raystructure determinations. Complex (3) has the rhodium7c-bonded q5 to a CSMe5 ring and q4 to the C4 ring of at e traph e n y 1 benzo cyclo bu t en e . The benzo c y clo bu t eneis very close to planar and only a little distorted uponco-ordination; the structure of the ligand is bestunderstood in terms of a ‘ 1,2-divinylcyclobutadiene ’type of bonding.Complex (4) has the rhodium n-bondedq5 to a C5Me5 ring and q4 to a cyclobutadiene; this cyclo-butadiene carries two phenyl substituents (1,3-) and an(uncoordinated) 6-( 1,3,6-triphenyl fulven yl) substi tuen t.Possible routes by which (3) and (4) could be formed arediscussed.Water-soluble manganese(lr1) porphyrins are oxidised inalkaline aqueous solution to the corresponding mangan-ese(1v) porphyrins which, from magnetic moment meas-urements, appear to exist in solution as y-0x0-dimers.Midpoint potentials and rate constants for oxidation ofthe manganese(m) porpyhrins have been measured for aseries of oxidants and throughout the range 9 < pH <14, but the overall electronic charge on the metallo-porphyrin had little effect upon either parameter.Themidpoint potentials for the Mn’”/’” couple are stronglydependent upon pH and increase with decreasing pH.Although manganese(1v) porphyrins are mild oxidants atpH 14, they should be capable of oxidising water tomolecular oxygen in neutral solution. With hypochloriteas oxidant, a second oxidation step is possible and thefinal product is believed to be a manganese(v) oxo-porphyrin.No summary is required for Letters to Dalton Transactions.3.1.3 Introduction.-This should give clearly and briefly,with relevant references, both the nature of the problemunder investigation and its background.3.1.4 Results and Discussion.-It is usual for the resultsto be presented first, followed by a discussion of their signifi-cance.Only strictly relevant results should be presented andfigures, tables, and equations should be used for purposes ofclarity and brevity. The use of flow diagrams and reactionschemes is encouraged. Data must not be reproduced in morethan one form, e.g. in both figures and tables, without goodreason.3.1.5 Experimental Section.-Descriptions of experimentsshould be given in detail sufficient to enable experienced experi-mental workers to repeat them; the degree of purity ofmaterials should be given, as should the relative quantitiesused. Descriptions of established procedures are unneces-sary. Standard techniques and methods used throughoutthe work should be stated at the beginning of the section.Apparatus should be described only if it is non-standard;commercially available instruments are referred to by theirstock numbers (e-g. Perkin-Elmer 457 or Varian HA-100spectrometers).The accuracy of primary measurements shouldbe stated. Unexpected hazards encountered during the experi-mental work should be noted. In general there is no needto report unsuccessful experiments.3.1.6 Acknowledgements.-Contri butors other than co-authors may be acknowledged in a separate paragraph at theend of the paper; acknowledgements should be as brief aspossible. Titles, Mr., Mrs., Miss, Dr., Professor, etc., shouldbe given but not degrees. The quotation of grant numbers isnot permitted .3.1.7 Bibliographic References.-These should be givenon a separate sheet at the end of the manuscript; for detailssee section 3.7.viINSTRUCTIONS FOR AUTHORS (1 983)3.2 BrevityFor reasons of economy, brevity in the presentation ofpapers is essential.Authors should note that the followingpractices are likely grounds for rejection of a manuscript, oracceptance only after substantial revision.(a) Unnecessary division of work into separate parts of aseries of papers.(6) Submission of fragmentary work which can be includedin a larger communication.(c) Undue elaboration of hypotheses.(d) Over-detailed and verbose exposition of ideas.(e) Excessive use of diagrams; for example, a straight-lineplot can be adequately expressed as an equation together with,if necessary, a table of deviations.(f) Duplication of data in text, tables, and figures, err.(g) Descriptions of slight variations of essentially the sametechnique.3.3 Linguistic and Typographical Conventions3.3.1 Grammar and Spelling.-Standard English spellingis used (Oxford English Dictionary).Latitude with respect toalternative spellings is allowed, but consistency should bemaintained within a paper. Difficult grammatical points maybe elucidated by reference to Fowler's Modern English Usage.3.3.2 Abbreviations.-The following common initial letterabbreviations may be used without definition : b.p., c.d., e.s.r.,g.l.c., ix., m.p., n.m.r., o.r.d., t.l.c., u.v., v/v, w/w. Other suchabbreviations should be defined at first mention, as shouldabbreviations for ligands, reagents, etc.3.3.3 Punctuation.-Punctuation follows standard Englishpractice; the following conventions are observed :(a) A comma is placed before ' and ' or ' or ' in a seriessuch as ' oxygen, sulphur, and selenium ' or ' Lmxa 237, 295,and 343 nm.'(6) The ' nesting ' order for parentheses, square brackets,and braces is ([()I).(c) Punctuation follows, rather than precedes parentheses,e.g. ' m.p.234 "C (decomp.),' and not ' m.p. 234 "C, (de-camp.)' .(d) A colon is used to separate a ratio as in 1 : 20-not asolidus 1/20.(e) Parenthetical expressions of the same physical quantityin different units are separated by comma, e.g. (3.9 g, 0.1mol), (30 ml, 1 mol).3.3.4 Use ofZtalics.-(a) Foreign words and phrases andLatin abbreviations are given in italics: e.g., in toto, in vivo,ca., cf., i.e., etc.(b) In the names of chemical compounds or radicalsitalics are used for prefixes (other than numerals or symbols)when they define the positions of named substituents, or whenthey define stereoisomers: other prefixes are printed in roman.(Note: Initial capital letters are not to be used with italicprefixes or single-letter prefixes: full stops are not to be associ-ated with letter prefixes.)Examples:0-, m-, and p-nitrotoluenes, but ortho-, meta-, and para-compounds (0-, m-, and p- are used only with specificnames; ortho-, meta-, and para- are used with classes),N,N-dimethylaniline, trans- and cis-bis(g1ycinato)platin-urn@), gem- and uic-diols, benzil anti-oxime.(c) The names of periodicals or their abbreviations are set initalics.Note: Greek letters are not italicised.3.3.5 Headings.-(a) Main sections (Experimental, Dis-cussion, etc.) : side-heading, bold, no final fullstop.(b) Main side-heading : italics, initial capital letter for eachnoun and adjective, final fullstop and dash.(c) Subsidiary side-heading : italics, first initial capital only,final fullstop but no dash.(d) Further subdivision: by italic (a), (b), etc.(no followingfullstop), and finally (i), (ii), etc. If (a), (b), etc. are used infront of a subsidiary side-heading, then for contrast theseletters are not italicized.Letters and prefixes which are ordinarily printed in italicsare transferred for contrast into roman type in italicisedphrases (see example below, where N,N-dimethyl becomesN,N-dime thyl) .Physicochemical symbols, however, remain in their pre-scribed form, and structural formulae, numerals, and Greekletters are not italicised.ExperimentalPreparation of the Thiolate Complexes.-(a) Bis(di-methyldithiocarbamato) [ N, N -dime thy lhydrazido( 2-)] bis-(benzenethiolato)molybden~m(vi) ( 1 0).(a) Benzenet h i ol(1 g) was added to . . .Action of 2-Benzylaminopyridi~ze on [Os,(CO),,( CHHI4),Jat 40 "C.-A solution of the bis(cyc1o-octene) com-plex . . .Examples:3.4 Formulae and FiguresThe purpose of all illustrative matter in a paper is to clarifythe arguments and descriptions rather than to duplicatethem.The Society strongly encourages the use of displayedformulae, particularly in the form of schemes where thedetails of a reaction sequence are often more easily under-stood when illustrated than when described in the text.All formulae and figures should be clearly drawn, and in thecase of figures, provided with captions; the latter should betyped on a separate sheet. Since all formulae carry keynumbers by which they are identified, unless they form partof the running text or unless they are part of a scheme whichitself has a caption, they are not generally further described.Blocks of formulae do not need captions.3.4.1 Structural Formulae.-(a) OnIy those formulaewhich are displayed outside the text should be given keynumbers.In other cases compounds should be referred to bya name or a linear formula.(b) Formulae should be numbered with arabic numerals inparentheses [(1), (2), and (3) etc.] in the order in which theyare displayed and not in the order of mention in text.(c) In complex reaction schemes formulae should benumbered serially following the reaction sequence. Non-sequential numbering in a collection of formulae can renderit hard to locate an individual number.(d) Structural or displayed formulae must be carefully andaccurately drawn or typed on a separate sheet, rather thaninserted into the text, although a marginal indication of wherethey are to go in the text is desirable.(e) Formulae inserted into the body of the text (as distinctfrom those displayed separately) should be written on oneline if possible, e.g.viiINSTRUCTIONS FOR AUTHORS (1 983)1-[CU~(~-CI),(OR)~] and [NiR(PPh3)2(CH=CHCH2CH20)]rather thanRO \Cu/Cl\C"/oRRO ' \Cl' \ORand[NiR(PPh3( f ) Guidelines for writing linear formulaefof complexes aregiven in IUPAC Nomenclature of Inorganic Chemistry (seeSection 3.8 of these Instructions).(g) In formulae of organic ligands the abbreviations Me, Et,Pr", Pr', Bu", Bu', Bus, But, and Ph may be used.Otherspecial symbols, if used, require an explanatory footnote.The carboxy-group is written COzH (not COOH); similarly(h) One variable univalent substituent is indicated by R;when more than one independently variable general substitu-ent is present, R', R2, and R3 should be used (not R, R', R',R3; or R,, R2, and R3 which indicate 1 x R, 2 x R, etc.Avariable metal may be indicated by M, variable ligands by L',LL, etc., and a variable halogen or chalcogen by X.COZR.Examples :X R' RLC1 But CF3CI But CC13C1 But CHClzCI But C5F5CI But C02HC1 But c~s-CH'CHCO~HC1 Bu' HBr But CF3Br But HCI CMe,Ph CF3co co co ?(M R(1) Ru [CHZl3Si(OMe),(2) 0 s [CHz]3Si(OMe)3(3) Ru Pr"(4) 0 s Pr "(i) Often it is desirable to use one formula to represent anumber of related compounds (or classes of compounds) bythe use of one or more independently variable substituents.It is preferable to give each compound thus represented aseparate key number rather than subdivide individual keynumbers of alphabetical suffixes 1i.e.(la), (lb), (lc) etc.].The use of more than four independently variable substitu-ents or atoms on one generalized formula is discouraged.0') Once a formula has been displayed it is permissible toemploy its key number in later reaction schemes or equationsrather than to re-display the formula.(k) Displayed formulae may be included in tables providedthat they can be typed on one line [see point (e) above];otherwise they should be displayed elsewhere and referred toby number only in the table itself.(I) The key number for a compound may be used in thecursive text to avoid repetition of long chemical names;this device must not be used to excess. In general it is pre-ferred if the key number is qualified by a partial name as inthe following example:' When the iridium complex (1) was stirred with an excess ofiodomethane at room temperature, the adduct (7) was ob-tained in high yield.The rhodium complexes (4)-(6) reactwith iodomethane under similar conditions to give the acetylcomplexes (8)-( 10) respectively, formed by isomerization ofthe first-formed methyl complexes (1 1 j-( 13).'(m) Reference to compounds in the summary by key num-ber alone is discouraged, since a summary should be compre-hensible without reference to the body of the paper.3.4.2 Figures.-(a) Figures must bear on the back thenames of the authors, the title of the paper (abbreviated ifnecessary), and the number of the figure.(b) Figures must be in black ink, on board, white smoothcartridge paper, tracing linen, plastic film (it is essential thatthe special plastic ink developed for this is used), or graphpaper with faint blue lines (red or brown lines must not bepresent as they may be reproduced by the photographicprocess employed).Since lines must be black and sharp,photostats or similar prints are often not suitable. If paper isused, it must be strong enough to withstand repeated handling.(c) Lettering and numerals must be in blue pencil (not redor black pencil or ink) clearly legible but not so heavily scoredas to make a permanent impression on the paper or board.( d ) When the figures are large (more than 20 x 25 cm),smaller copies (which may be rough, as long as they areclear) should be supplied for submission to the referees;editing will not be undertaken, however, before the finalfigures are received.(e) Figures should be drawn about three times the requiredsize, with lines thick enough to withstand photoieduction.( f ) Five-cm margins should be left all round figures.Letter-ing for insertion at margins should be placed well clear of theordinate or abscissa line so that it can be copied beforeerasure.Lettering and touching-up are done by the Society andclarity of instructions is essential. When there is much lettering,or complicated lettering, and always when tracing linen orplastic film is used, a rough tracing should be provided withthe lettering shown in ink.(g) Since, for printing, the size is reduced, lines should notbe too thin.Given lines must be of even thickness, angles neat,and curves smooth. Particular care should be taken with pairsof crystal structure diagrams for stereoscopic viewing : forgood reproduction an adequate line thickness is essential.iINSTRUCTIONS FOR AUTHORS (1 983)( h ) Graphs should have only the requisite minimum ofscale divisions (not less than three points) marked by numer-als, and the scale lines should not normally be continued intothe body of the figure.( i ) Graphs in any one paper should be drawp to the samescale when convenient, and scale markings should be identicalwhen possible so that the graphs may be placed adjacent onthe page. Two curves drawn to different scales can be shownon one graph by having the appropriate scales on the left-hand and the right-hand side.The use of both right- and left-hand axes and top and bottom axes on figures which havequantitative significance is encouraged.( i ) The expression used to define the numerical values of aphysical quantity plotted on a graph should be dimensionless,t.g. In (platm), lO3(T/K)-I.( k ) Experimental points must be shown sufficiently large tobe distinguishable when reduced in size. Whenever possible,they should be confined to open and closed circles, crosses.squzres, and triangles. Partly black circles and similar signsfrequently become indistinguishable in print.( I ) Curves may be distinguished as full lines (--), broken(m) For reference in legends, it is preferable to mark curvesA,B,C, etc. rather than to reproduce the type of line in print.(n) There must be no unnecessary waste space: e.g.aroundcurves; ordinates and abscissae should start at zero only if thecurve extends to that range. Enlargements of parts of a figurecan occasionally be placed on a corner of the complete figure.(0) It is not advisable to insert much or complicated letteringo n curves or in blank spaces; mistakes (in copying by theartist) can rarely be rectified once the block is made. It is betterto label the curves A,B,C, etc. and to use explanatory legends.( p ) Large solid objects should be represented by hatchingrather than by black surfaces, otherwise the ink may smear onpr i n t ing.( 4 ) Photographs are reproduced by a half-tone process. Theprints supplied must be very clear and of good contrast, asconsiderable definition may be lost in reproduction.( r ) Captions and explanatory legends to be set by the printershould be typed on a separate page attached to the manuscript,and not given on the figure itself.(s) Figures are numbered consecutively Figure 1 , Figure 2,etc.( i n arabic numerals).3.5 Presentation of Experimental Data3.5.1 Table.i.-If there is extensive reference to anyp2rticular data in the text, presentation of the data in tabularform is preferred. It is difficult to give general rules for theeconomical layout of Tables but authors will find it helpful tocansult recent issues of the Journul for examples. A layouttTking up the full width of the printed page, with repetition ofcolumn headings if necessary, is normally preferred to alengthy half-page-width presentation.Columns containingvery few entries are wasteful of space, and better replaced byfootnotes.When Tables (and Figures) are reproduced in the journal,they will be positioned at the top or the bottom of a printedpzge, as new as possible to their first mention.Column headings should be brief, as their width, rather thanthzt of the entries beneath them, often determines the numberof columns that can be accommodated.Column headings should be in accord with the conventionsassociated with SI; thus the expression at the head of acolumn of numerical values of a physical quantity should bedimensionless, i.e. the quotient of the symbol for the physical(----) or dotted lines (.. . .), and dot-dash lines (-+----- ).quantity and the symbol for the unit used, e.g. platm, or thesymbol for a dimensionless physical quantity, e.g. pVG, orsome mathematical function of such a number, e.g. ln(pm/atm).Exainple :O/"C T/K 103K/T platm ln(p/atm) VmG/cm3 mol-' pVmG/RT-51.60 216.55 4.6179 5.112 1.6316 3 177.6 0.9142Space requirements may favour the use of a horizontal rule,rather than an oblique stroke. VmGcm3 mol-' e x .If possible, tables should be arranged so as not to requireprinting sideways on the page (' landscape ') unless theirdepth is such that the page will be filled; otherwise divisioninto two tables is preferred.3.5.2 Physical Characteristics of Compounds.-Data as-sociated with particular compounds should be listed after thename of the compound concerned, following the descriptionof its prepsration, or else presented in tabular form.The following is suggested as the order in which the mostcommonly encountered data for a new compound should becited: yield, melting point, optical rotation, refractive index,elemental analysis, U.V. absorptions, i.r.absorptions, n.m.r.spectrum, mass spectrum. Appropriate formats for the ci-tation of each are as follows.Yield. I n parentheses after the compound name (or itsequivalent). Weight and percentage are separated by a comma,e.g. ' the carbonyl complex (7.1 g, 56%) '.Melting point. In the form ' m.p. 75 "C (from EtOH) ',i.e. the crystallisation solvent in parentheses. If an identicalmixed melting point is to be recorded, the form ' m.p. andmixed m.p.75 "C ' is appropriate.Refractive index. Given in the form nD2' 1.653.Elemental analysis. I n the presentation of elemental analy-ses, a distinction is made between 'new' and 'known'compounds (see section 3.6).New compounds should be indicated by underlining thename (for italics) at its first mention (excluding headings) inthe Experimental section only, and by giving analyticalresults in the form: (Found: C, 56.4; H, 4.00. CI2Hl0CrO3requires C, 56.7; H, 3.95%). If analytical results for compoundswhich have been adequately described in the literature are tobe included, they should be given in the form: (Found: C,56.5; H, 4.00. Calc. for C12H10Cr03: C, 56.7; H, 3.95%).Analyses are normally quoted to the nearest 0.05%.If a molecular weight is to be included, the appropriateform is: [Found: C, 56.5; H, 4.00%; M (mass spectrum), 254(or simply M + , 254).C12H10Cr03 requires C, 56.7; H, 3.95%;M , 2541,U.U. absorptions. These are given in the form kmX, (EtOH)228 ( E 40900 dm3 mo1-' cm-I), 262 (19200), and 302 nm( I 1 500). Inflections and shoulders are specified as 228infl or262sh. Alternatively the following form may be used: hmax.(EtOH) 228, 262, and 302 nm (E 40 900, 19 200, and 11 500dm3 niol-' cm-I). Log E may be quoted instead of E.Z.r. absorptions. Shown as follows: vnlax. 2029 and 1955(CO), and 1 714 an-' (NO). The type of signal (s, w, vs, br)can be indicated by appended letters (e.g. 1 760vs).N.m.v.datu. For all spectra 6 values should be used, withthe nucleus indicated by subscript if necessary (e.g. SH, Sc).Instrument frequency, solvent, and standard should beINSTRUCTIONS FOR AUTHORS (1 983)~~~~~Table 0. Analytical a and physical data for the platinum-tungsten complexesAnalysis (%)M.p.* Yield - v(C0) d/cm-i C H110-112 Pink 18 2033vs, 1939s, 32.3 3.01 865m, sh, 1 845m (32.3) (3.2)Red 10 2016s, 1939m, 37.6 3.21843m,br (37.5) (3.0)Red 40 2027s, 1938s,1857m,br128-134 Orange 40 2 003s, 1 989s, 26.9 3.41 857m,br, 1 763m,br (27.4) (3.0)f 136-140 Orange 41 1993s, 1 98&, 1 729m 34.3 3.2(34.3) (3.0)141-145 Dark 43 1999vs, 1839s,br, 40.5 3.2orange 1 746m,br (40.3) (3.0)112-115 Red 27 2003s, 1983s, 48.2 3.61967s, 1923s, (47.6) (3.2)1 864m,br, 1784m,br160-169 Red 10 1 990s, 1 829m, 32.1 3.61732m (31.9) (3.2)(e%c) Colour (%)a Required values are given in parentheses.With decomposition. Based on tungsten. In methylcyclohexane, unless otherwise stated.Compound not obtained analytically pure due to contamination with PPh3. f Crystallised with 0.2 molecules CH2CI2. In dichloromethane.Crystallised with f molecule PhMe.specified. For example: 6 , (100 MHz; solvent CDCI,;standard Me,%) 5.28 [4 H, m, J(PtH) 72 Hz, 4 CHI, 2.04 (8 H,s, 4 CH2), and 1.80 (30 H, s, 2 C5Me5). A broad signal may bedenoted by ' br ', e.g. 2.43 (1 H, br s, NH). Order of citationin parentheses : (i) number of equivalent nuclei (by integration),(ii) multiplicity (s, d, t, q), (iii) coupling constant, e.g.J(RhP)15 Hz, J(PH) 4 Hz, (iv) assignment; underlining for italicscan be used to specify the nuclei concerned (e.g. CH,CH2).Mass spectrum. Given in the form: m/z 183 ( M + , 41%),168 (38), 154 (9), 138 (31) etc. The molecular ion may bespecified as shown if desired. Relative intensities in parentheses(% only included once). Other assignments may be included inthe form mjz 152 (33, M-CH3CONH2). Metastable peaksmay be listed as: m* 160 (189 + 174), 147 (176 + 161),etc. The type of spectrum (field desorption, electron impact,etc.) should be indicated.Literature citations. If comparison is to be made withliterature values, these should be quoted in parentheses, e.g.m.p. 157 "C (from chloroform) (lit.,19 156 "C), or v,,,,.2 020and 1 592 cm *Example of a typical experimental section format. Thefollowing paragraph exemplifies many of the points made inthe preceding paragraphs. Authors should note in particularthe specification of quantities in parentheses after the namesof reagents.Synthesis of the Rhodium-Manganese Complex (I).-Tricarbonyl(q-cyclopentadieny1)manganese (0.365 g, 1.79mmol) in tetrahydrofuran (50 cm3) was irradiated (u.v.)for 2 h at 0 "C under argon. The solution was then treatedwith [Rh(CO)2(~-C5Me5)] (0,259 g, 0.88 mmol) and themixture stirred at room temperature for 18 h. Removalof solvent and chromatography afforded unchanged[Rh(CO),(q-CSMe5)] and [Mn(C0)2(q-C5H5)] followedby yellow-brown crystals of [MnRh(p-CO)2(CO)2(q-C5HS)(q-C5Me,)] (1) (0.327 g, 79%), m.p.158-160 "C(Found: C, 48.7; H, 4.5%; M + , 470. C1LH2nMnOJRh re-quires C , 48.5; H, 4.3%; M, 470); v, (CO) 1997sh,1991s, 1921vs, 1809w, and 1788vs cm-l (Nujol);2 015 and 1 600 cm-I).1 983s, 1935vs, 1 818w,sh, and 1 807s cm-' (hexane);8, (CDCI,) 1.84 (1 5 H, s, C5Me5) and 4.62 (5 H, S, CsHs);227.6 (1 C, s, MnCO), 188.3 [l C, d, J(RhC) 84 Hz,RhCO], 105.0 (C5Me5), 86.5 (C5H5), and 8.9 (C5Me5);m/z 470 ( M + ) , 442 ( M - CO), 414 ( M - 2CO), 386( M - 2CO), and 358 ( M - 4CO).6c (CD2C12-CH2CI2) 252.2 [2 C, d, J(RhC) 22 Hz, V-CO],An example of an alternative, tabular presentation of datais also shown (Table 0).3.6 Authentication of New CompoundsIt is the responsibility of authors to provide fully con-vincing evidence for the homogeneity and identity of allcompounds they claim as new.Evidence of both purity andidentity is required to establish that the properties andconstants reported are those of the compound with the newstructure claimed.A compound is considered as new (a) if it has not beenprepared before, (b) if it has been prepared before but notadequately purified, (c) if it has been purified but not ade-quately characterised, ( d ) if, earlier, it has been assigned anerroneous constitution, or (e) if it is a natural product isolatedor synthesised for the first time. In preliminary communi-cations compounds are often recorded with limited charac-terising data; in spite of (c) above later preparations o'f suchcompounds are not considered as new if the properties pre-viously reported are confirmed; the same applies to patents.Referees will assess, as a whole, the evidence in support ofthe homogeneity and structure of all new compounds.Nohard and fast rules can be laid down to cover all types ofcompounds, but evidence for the unequivocal identificationof new compounds should wherever possible include goodelemental analytical data; an accurate mass measurement ofa molecular ion does not provide evidence of purity of acompound and must be accompanied by independent evidenceof homogeneity. Low-resolution mass spectrometry must betreated with even more reserve in the absence of firm evidenceto distinguish between alternative molecular formulae. WherINSTRUCTIONS FOR AUTHORS (1 983)elemental analytical data are not available, appropriateevidence which is convincing to an expert in the field may beacceptable, but authors should include, for the referees, abrief explanation of the special nature of their problem.Spectroscopic information necessary to the assignment ofstructure should normally be given.Just how complete thisinformation should be must depend upon the circumstances;the structure of a compound obtained from an unusualreaction or isolated from a natural source needs much strongersupporting evidence than one derived by a standard reactionfrom a precursor of undisputed structure.3.7 Bibliographic References and FootnotesA clear distinction is made between bibliographic referencesand footnotes.The latter are used to present material which,if included in the body of the text, would disrupt the flow ofthe argument but which is, nevertheless, of importance inqualifying or amplifying the textual material. Such footnotesare referred to with the following symbols: *, t, $, s, T, 11, etc.[Note: Since an asterisk is used to indicate the author towhom correspondence should be addressed, its use early onin a paper is not advised; a dagger (t) is preferred.]Bibliographic reference to the source of statements in thetext is made by use of superior numerals at the appropriateplace. The references themselves are given at the end of thefinal printed text. It is essential that they are numbered inthe order in which they are cited in the text.The position of the superior numeral should be chosen withcare, particularly when it does not follow an author’s name.If placed adjacent to punctuation, the numeral should norm-ally be placed after the punctuation mark, e.g.‘ This com-pound was shown to be the dienoneY3 which . . .’.Particular care is necessary where a reference number islikely to be confused with a superscript numeral indicating apower index: ‘. . . which gave a value of 2.3 cm3 . . .’ shouldJournal AbbreviationsAcc. Chem. Res.Acta Acad. Aboensis, Ser. BActa Bwchim. Bwphys. Acad. Scd. Hung.Acta Bwchim. Iran.A d a Bwchim. Pol.Acta Chem. Scand., Ser. AA d a Chem. Scand., Ser. BActa Chim. Acad. Sci. Hung.Acta Crystallogr.Acta Metall.Acta Phys. Acad. Sci. Hung.Acta Phys.Chem.Acta Vilaminol. Enzymol.Adv. Act. Anal.Adv. Alicyclic Chem.Adv. Anal. Chem. Instrumen.Adv. Carbohydr. Chem. Biochem.Adv. Catal.Adv. Chem. Phys.Adv. Chromat ogr.Adu. Colloid Interface Sci.Adv. Enaymol. Relat. Areas Mol. Biol.Adv. Free-Radical Chem.Adv. Heterocycl. Chem.Adv. Inorg. Chem. Radiochem.Adu. Lipid Res.Adv. Macromol. Chem.Adv. Magn. Reson.Adv. Molten Salt Chem.Adu. Organomet. Chem.Adv. Org. Chem.Adv. Photochem.Adv. Phys. Org. Chem.Adv. Protein Chem.Adv. Quantum Chem.Adu. Struct. Res. Diflr. MethodsAfinidadAgric. Biol. Chem.Agrokcm. TalajtanAIChE J .AmbixAm. J . Pharm.A m . J . Sci.An. Acad. Bras. Cienc.Anal. Biochem.Anal. Chem.Anal. Chim. ActaAnal. Ldt.A naluszsAnalyst (London)A n .Bromatol.Angew. Chem.Angew. Chem., Int. Ed. Engl.Angew. Makromol. Chem.Ann. Acad. Sci. Fenn., Sect. A I I , Chem.Ann. Chim. (Paris)Ann. Chim. (Rome)Ann. Endocrinol,Ann. N . Y . Acad. Sci.Ann. Pharm. Fr.Ann. Soc. Sci. BruxellesAnn. Univ. Mariae Curie-Sklodowska,Annu. Rep. Anal. At. Spectrosc.Annu. Rep. Med. Chem.Annu. Rep. Prog. Chem., Sect. A , Phys.Annu. Rep. Prog. Chem., Sect. B.Annu. Rev. Baochem.Annu. Rev. Ind. Eng. Chem.Annu. Rev. 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Eng.Can. J . Pharm. Sci.Can. J . Phys.Can. J . Spectrosc.Carbohydr. Res.sci.CarbonCatal. Rev.Cellul. Chem. Technol.Cereal Chem.Cesk. Farm.Chelates Anal. Chem.Chem. Age (London)Chem. Anal. (Warsaw)Chem. Ber.Chem. Br.Chem. Can.Chem. Chvon.Chem. Econ. Eng. Rev.Chem. Eng. Commun.Chem. Eng. J . (Lausanne)Chem. Eng. (London)Chem. Eng. NewsCAem. EfIg. Progr.Chem. Eng. Progr., Monogr. Ser.Chem. Eng. Progr., Symp. Ser.Chem. Eng. Sci.Chem. ErdeChem. Heferocycl. Compd. (Engl. Transl.)Chem. Ind. (Deusseldorf)Chem. I d . Int. (Engl. Transl.)Chem. Ind. (London)Chem.-Ing.-Tech.Chem. ListvChem.Chem.Chem.Chem.Chem.Chem.Chem.Chem.Nat: Compd.(Engl.AT. 2.Pharm. Bull.Phys.Phys. CarbonPhys. Lett.Phys. LipidsPrunr.Transl.)Chem. Rev.ChemsaChem. Scr.Chem. SOC. Rev.Chem. Soc., Spec. Publ.Chem. Stosow.Chem. Tech. (Leipzig)Chem. Technol.Chem. WeekChem. Weekbl.Chem.-Ztg.Chem. ZvestiChim. Acta T i m .Chim. Actual.ChimiaChim. Ind. (Milan)Chromatograph iaClin. Biochem.Clin. Chem. (W’iitslon-Salem, N . C.)Clin. Chim. ActaCollect. Czech. Chem. Commun.Colloid J . USSR (Engl. Transl.)Colloid Polym. Sci.Combust. FlameCommun. Fac. Sci. Univ. AnkaraCommun. H . Soc. Edinburgh, Phys. Sci.Comput. Chem.Coord. Chcm. Rev.Corrosion Sci.Cosmet. Perfum.CRC Crit. Rev. Biochem.C.R. Hebd. Seances Acad. Sca.Crit. Rev. Anal. Chem.Croat. Chem. ActaC.H.Seances Soc. Biol. Ses Fil.Curr. Sci.DEFA ZET-Dtsch. Farben-Z.Denki Kagaku Oyobi Kogyo ButsuriDokt. Akad. ATauk Arm. SSRDokl. Akad. Nauk SSSRDokl. Bolg. Akad. NaukDokl. Chem. (Engl. Transl.)Dokl. Chem. Technol. (Engl. Transl.)Dokl. Phys. Chcm. ( E n d . Transl.)Dopo. Akad. Nauk Uk;. R S R , Ser. BDouhle- LiaisonDtsch. Lebensm. -Rundsch.Dyn. Mass Spectrom.Educ. Chena.Egypt. J . Chem.Electroannl. Chem.Electrochim. ActaElfktvokhimiyaEndcavou rEnviron. Sci. Technol.KagakuErdoel Kohle, Erdgas, FetrochemEssays Biochem.Ewr. J . Biochem.Eur. Polym. J .Experient iaFaraday Discuss. Chem. SOC.Faraday Symp. Chem. SOC.FEBS Lett.Fermentn. Spirt. Prom.Fette, Seifen. Anstrichm.Finn Chem. Lett.Fiz. -Khim. Mekh.Mnter.Fir. Met. Metalloved.Flavour Ind.Fluorine Chem. Rev.Food Manuf.Fortschr. Chem. Org. Naturst.Fortschr. Hochpol ym. -Forsch.Fresenizlsz Z . Anal. Chem.FuelGazz. Chim. Ital.Gen. Cytochern. MethodsGeokhimiyaGer. Chem. Eng. (Engl. Transl.)Gidrokhim. Mat.Glas. Hem. Drus., BeogradGlass Technol.G. Microbiol.God. Vissh. Khimikotekhnol. Inst., SofiaGrams Aceites (Seville)Helv. Chim. A d aHigh Energy Chem. (Engl. Transl.)Hist. Stud. Phys. Sci.Hoppe-Seyler’s Z. Physiol. Chem.Hua HsuehHua Hsueh Hsrieh PaoHua Hsueh Tung Pa0Hung. J . Ind. Chem.Hwahak Kma Kongop U i ChinboInd. Eng. Chem., Fundarn.Ind. E q . Chem., Process. Res. Dev.Ind. Eng. Chem., Prod. Res. Dev.Indian J . Agric. Chem.Indian J . Riochem. Biophys.Indian J .Chem., Sect. AIndian J . Chem., Sect. BIndtan J . Pure Appl. Phys.Ind. Lah. (Engl. Transl.)Inorg. Chem.Inorg. Chin,. ActaInorg. Mater. (Engl. Transl.Inorg. Nucl. Chem. Lett.Inorg. Synth.Int. Chem. Eng.Int. Flavours Food Addit.Int. J . Appl. Kadiat. Isot.Int. J . Chem. Kinet.I n t . J . Ilrlass Spectrom. Ion Phys.Int. J . Pept. Protein Res.Int. J. Quantum Chem.Int. J . Qirantirm Chem., Symp.Int. J . Sulfur Chem.Int. J . Vitam. Nztlr. Res.Intra-Sci. Chem. Rep.Inz. Chem.Ion Exch. Solvent Extr.Isr. J . Chem.Istanbul Univ. Fen Fak. Mecm., Scri CItal. J . Biochem.Brennst. -Chem.xiINSTRUCTIONS FOR AUTHORS (1983)Journal Abbreviations (continued)ltsuu Kenkyusho NcmpoIsv. Akad. Nauk Kax. SSR, Ser.Khim.Isv. Akad. Nauk SSSR, Neorg. Mater.Izv. Akad. Nauk S S S R , Ser. Khim.Ixv. Akad. Nauk Turkm. SSR, Ser. Fix.Tekh., Khim. Geof. NaukItv. Sib. Otd. Akad. Nauk SSSR, Ser.Khim. NaukJ . Agric. Food Chem.J. Am. Chem. SOC.J . Am. Leather Chem. Assoc.J . Am. Oil Chcm. SOL.J . Anal. Chem. USSR (Engl. Transl.)J . Appl. Chem. Biotechnol.J . Appl. Chem. U S S R (Engl. Transl.]J . Appl. Crystallogr.J . Appl. Polym. Sci.J . Assoc. Off. Anal. Chem.J . Assoc. Public Anal.J . Btochem. (Tokyo)J . Brol. Chem.J . Carbohydr., Nttcleosides, NucleotidesJ . Catal.J . Chem. Educt.J . Chem. Eng. DataJ . Chem. I n f . Comput. Sci.J . Chem. Phys.J . Chem. Res. ( M )J . Chem. Res. ( S )J . Chem. SOC., Chem. Commun.J . Chem. SOC., Dalton Trans.J .Chem. SOC., Faraday Trans. 1J . Chem. SOC., Faraday Trans. 2J . Chem. SOC., Perkin Trans. 1J . Chem. SOC., Perkin Trans. 2J. Ckem. Thermodyn.J . Chim. Phys. Phys. Chim. Biol.J . Chin. Chem. SOC. (Taipei)J . Chromatogr.J . Chromatogr. Sci.J . Colloid Interface Sci.J . Coord. Chem.J . Cryst. Mol. Struct.J . Doc.J . Electroanal. Chem. InterfacialJ . Electrochem. Soc.J . Electrochem. SOL. IndiaJ . Fac. Sci. Univ. TokyoJ . Fluorine Chem.J . Food Sci.J . Franklin Inst.J . Gen. Chem. USSR (Engl. Transl.J . Hazard. Mater.J . Heterocycl. Chem.J . Histochem. Cytochem.J . Indtan Chem. SOC.J . Indaan Inst. Sci.J . Inorg. Nucl. Chem.J . Inst. Brewing, LondonJ . Inst. Chem., CalcuttaJ . Inst. FuelJ .Labelled Comp. Radiopharm.J . Less-Common Met.J . Lipid Res.J . Liq. Chromatogr.J . Lumin.J . Macromol. Sci., Chem.J . Macromol. Sci., Phys.J . Magn. Reson.J . Med. Chcm.J . Mol. Biol.J . Mol. Catal.J . Mol. Spectrosc.J . Idol. Struct.J . Neurochem.J, Nonmet . Semiconduct.J . Oil Colour Chem. Assoc.J . Organomet. Chem.J . Org. Chem.J . Org. Chem. USSR (Engl. Transl.)J . Pharmacol.J . Pharmacol. Exp. Ther.J, Pharm. Pharmacol.J . Pharm. Sci.J . Photochem.J . Phys. Chem.J . Phys. Chem. Ref. DataJ . Phys. Chem. SolidsJ . Phys. EJ . Polym. Sci., Macromol. Rev.J . Polym. Sci., Polym. Chem. Ed.J . Polym. Sci., Polym. Phys. Ed.J . Polym. Sci., Polym. Symp.Electrochem.J. Prakt. Chem.J. Quant. Spectrosc.Radiaf. TransferJ . Radwanal. Chem.J. Raman Spectrosc.J . Res. Inst. Catal., Hokkaido Univ.J. Res. Nat. Bur. Stand., Sect. AJ . Sci. Food Agric.J . Sci. Hiroshima Univ., Ser. A I I . Phys.,J . Sci. Ind. Ra.J . SOC. Dyers Colour.J . SOC. Leather Technol. Chem.J . Solid ,State Chem.J . Solutwn Chem.J . Steroid Biochem.J . Struct. Chem. (Engl. Transl.)J . Text. Inst.J . Therm. Anal.Justus Liebigs Ann. Chem.Kagaku KogakuKanazawa Daigaku Yakugakubu KenkyitNempoKem. -KemiK em. Tidskr.Khim. Geterotsikl. Soedin.Khim. Ind. (Sofia)Khim. Neft. Mashinostr.Khim. Prir. Soedin.Khim. Prom. (Moscow)Khim. VoloknaKhim. Vys. Energ.Kinet. Catal. (Engl. Transl.)Kinet. Katal.KjemiKobunshi KagakuKogyo Kagaku ZasshiKolloidn.Zh.Koord. Khim.KristallografiyaKunstst. -Plast. (Solothurn, Swits.)Chem.Lab. Pract.Latv. P S R Zinat. Vestis, Kim. Ser.LipidsMacromoleculesMacromol. Synth.Magy. Ken. Foly.Magy. Kem. LapjaMakromol. Chem.Manuf. Chem. Aerosol NewsMe&. Vlaum. Chem. Ver.Mekh. Polim.Mem. Fac. Sci. Kyushu Univ., Ser. CMm. Inst. Protein Res., Osaka Univ.Mem. Inst. Sci. Ind. Res., Osaka Univ.Mendeleev Chem. J . (Engl. Transl.)Methods Bwchem. Anal.Methods Free-Radical Chem.Microchem. J .Mikrochim. ActaMol. Cell. Biochem.hfol. Cryst. Liq. Cryst.Mol. Phys.Monatsh. Chem.NahrungNature (London)NaturwissenschaftenNeftekhimiyaNippon Kagaku KaishiNippon Nogei Kagaku KaishiNouv. 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SOC. Exp. Biol. Med.Prog. Bioorg. Chem.Prog. Colloid Polym. Sci.Prog. Inorg. Chem.Prog. Med. Chem.Prog. Nucleic Acid Res. Mol. Biol.Prog. Nucl. Magn. Reson. Spectrosc.Prog. Phys. Org. Chem.Prog. React. Kinet.Prog. Solid State Chem.Prog. Stereochem.Prog. Surf. Membr. Sci.Prog. S iirf. Sci.Prog. Thin-Layer Chromatogr.ReEat. MethodsPrzem. Chem.Pure Appl. Chem.Pyrethrum PostQuad. I ng. Chim. Ital.Quam. NovaRadiat. Phys. Chem.Radiat. Res.Radiochim.ActaRadiokhimiyaReact. Kinet. Catal. Lett.Recent Dcv. Chem. Nat. Carbon Compd.Recent Prog. Horm. Res.RecherchesRecl. Trav. Chim. Pays-BasRend. Accad. Sci. Fis. M d . , NaplesRep. Prog. Appl. Chem.Residue Rev.Rev. Anal. Chem.Rev. Asoc. Bioquim. Argent.Rev. Chim. (Bucharest)Rev. Phys. Chem. Jpn.Rev. Port. Quim.Rev. Roum. Biochim.Rev. Roum. Chim.Rev. Sci. Instrum.Rev. SOC. Quim. Mex.Ric. Sci.Rubber Chem. Technol.Russ. Chem. Rev. (Engl. Transl.)Russ. J . Inorg. Chem. (Engl. Transl.)Russ. J . Phys. Chem. (Engl. Transl.)S. Afr. J . Chem.Sankyo Kenkyusho NempoSb. Ved. Pr., Vys. Sk. Chemickotechnol.,PardubiceSch. Sci. Rev.Schweiz. Apoth. -Ztg.sci. Cult.ScienceSci. Pap. Coll. Gen. Educ., Univ. TokyoSci.Pap. Inst. Phys. Chem. Res. ( J p n . )Sci. Rep. Res. Inst., Tohoku Univ.Sca. Rep. Tohoku Univ., Sn. 1Sci. SinicaSel. Annu. Rev. Anal. Sci.Semicond. InsulSep. Purif. MethodsSep. Sci. Technol.Soap. Cosmet., Chem. Spec.Sov. Elatrochem. (Engl. Transl.)Sou. J . Bborg. Chem. (Engl. Transl.Sou. J . Coord. Chem. (Engl. Transl.)Sw. Phys. -Crystdlogr. (Engl. Transl.Sou. Radiochem. (Engl. Transl.)Spectrochim. Acta, Part ASpectrochim. Acta, Part BSpcCrrosc. Lett.SteroidsSteroids Lipids Res.Struct. Bonding (Berlin)Stud. Univ. Babes-Bolyai, Ser. Chem.Sub-Cell. Biochem.Surf. Colloid Sci.Surf. scz.Synth. Commun.SynthesisSynth. Proced. Nucleic ricid Chcm.Synth. React. Inorg. Metal-Org. Chem.Taehan Hwahak HoechiTalantaTechnol.Rep. Osaka Untv.Teor. Eksp. Khim.Teor. Osn. Khim. Tekhnol.TetrahedronTetrahedron Lett.Text. Inst. Ind.Text. Res. J .Theor. Exp. Chem. (Engl. Transl.Thermochim. ActaT i n Its UsesTokyo Kogyo Shtkensho HokokuTop. Curr. Chem.Top. Stereochem.Traits. I m t . Chem. Eng.Trans. Inst. Met. Finish.Transition Met. Chem.Trans. J . Br. Ceram. SOC.Trends Biochem. Sci.Tr. Inst. Elektrokhim., CTral. Nuuchn.Ukr. Biokhim. Zh.Ukr. Khim. Zh. (Rrbss. Ed.)Vsp. Khim.U V Spectrom. Group Bull.Uab. Khim. Zh.Tsentr. Akad. Nauk S S S RVesfn. Leningr. Univ., Fiz., Khim.Vestn. Mosk. Univ., Khim.Vestn. Slov. Knn. Drus.L'estsi Akad. Navuk B , SSR. Ser. KhimNavukVestfiremi Vegyip, Egy. KozlVitam. Horm. (N.Y.)Vopr. Med. Khim.Vysokomol.Soedin., Ser. AVysokomol. Soedin., Ser. BXenobiot icaYakugaku ZasshiY u k i Gosci Kagaku Kyokai ShZ . Anorg. Allg. Chem.Zavod. Lab.Zb. Pr. Chemickotechnol. Fac. SVST2. Chem.Zentralbl. Pharm., Pharinakother.Laboratoriumsdiagn.Zh. Anal. Khim.Zh. Eksp. Teor. Fiz.Zh. Evol. Biokhim. Fiziol.Zh. Fiz. Khim.Zh. Nauchn. Prikl. Fotogr. Kirternatogr.Zh. Neorg. Khim.Zh. Obshch. Khim.Zh. Org. Khzm.Zh. Prikl. Khim.Zh. Prikl, Spektrosk.Zh. Sfrukt. Khim.Zh. Vses. Khzm. Ova.2. Kristallogr., Krislallgeom., Kristall-phys., Kristallchem.Z. Lebcnsm. -Unters. Forsch.2. Naturforsch., Ted A2. Naturforsch., Tell BZ. Ndurforsch., Teal C2. Phys. Chem. (Frankfurt am Main)2. Phys. Chem. (Leipzig)Z . Vitam., Horm., Fermentforsch.2.Wiss. Photogr., Photophys., Photochem....X l l INSTRUCTIONS FOR AUTHORS (1 983)5 G. B. Ball, personal communication. (Note: the formG. B. Ball, private communication, is inappropriate.)If material is to be published but has yet to be submitted thefollowing form is used:6 G. B. Ball, unpublished work.Names. The names and initials of all authors are alwaysgiven in the reference footnote; they must not be replaced bythe phase et al. This does not prevent some, or all, of the namesbeing mentioned at their first citation in the cursive text:initials are not necessary in the text.For Chinese and Spanish authors all names should begiven as in the original, since the patronymic is not alwaysgiven last in these languages. If co-authors are to be collec-tively cited, as in ‘ Smith and co-workers ’ or ‘ Smith et al.,’the latter form is inappropriate unless the individual name‘Smith’ appears first among the authors named in theoriginal.Composite references.Whenever possible, composite refer-ences should be used rather than a series of individual ref-erences. The style for composite references is as follows:1 A. B. Jones, J. Chem. SOC., Dalton Trans., 1975, 234.2 A. B. Jones, J. Chem. SOC., Dalton Trans., 1977, 123;1978, 234.3 A. B. Jones, J. Chem. SOC., Dalton Trans., 1977, 123;J. Am. Chem. SOC., 1956,78,1234.4 A. B. Jones, J. Chem. SOC., 1956,234; A. B. Jones andC. D. Brown, J. Chem. SOC. B, 1967, 234, 1077; 1968,599.5 A. B. Jones, J . Am. Chem. SOC., 1956, 78, 1234;A.B.Jones and C. D. Brown, ibid., 1957, 79, 567; A. B.Jones and E. F. Green, ibid., p. 999.If only one paper from a composite reference is required forcitation later, then two numbers may be assigned to the firstcitation (e.g. Jones IJ); alternatively, long composite referen-ces may be divided by letters, e.g.:(a) A. B. Jones, J. Chem. SOC., Dalton Trans,, 1978, 467;(b) A. B. Jones and C. D. Brown, J. Chern. SOC., PerkinTrans. 2, 1979, 234.A. B. Jones, J. Chem. SOC. A, ( a ) 1967, 267; (b) 1968,1742; ( c ) etc.A composite reference may cite a previous reference in the12 A. B. Jones, J. Chem. SOC., 1956, 234; C. D. Brown,(Note: ibid. is used only within a given reference and not torefer from one reference number to another: the abbreviatedtitle for the journal should be repeated for separate referencenumbers .)form :ref.5.Idem, loc. cit., and op. cit are not used in references.be written as ‘. . . which gave a value of 2.3 cm ’ or ‘. . .which gave a value of 2.3 cm (ref. 3) ’.Since it is difficult to predict the final position of a table inthe text, references cited only in the table should be in-corporated into the printed footnotes to the table. Referenceswhich are also cited elsewhere in the text should be referred toin the footnotes by the numbers used in the text citations, e.g.* Ref. 15.Journals. The style of journal abbreviations to be used inthe Society’s publications is that defined in Chemical AbstractsService Source Index (CASSI). The abbreviations listed inCASSI are based upon internationally recognised systems.The list of CASSI-style abbreviations on pages xii-xiii coversmost of the journals received in the library of the RoyalSociety of Chemistry. It is not, of course, a full list; CASSIplus its quarterly supplements run to more than 2 000 pages.If you cannot locate an authoritative abbreviation for ajournal, and if it is not obvious how the title should beabbreviated, please cite the full title.Bibliographic details should be cited in the order: year,volume, page.Books.Titles of books are cited in quotation marks, inupright letters, and the author(s), title, publisher, town, date(or edition, if more than one has been published), and pagenumber (if required) must be given in that order:D.Brown, ‘ Halides of the Lanthanides and Actinides,’Wiley, London, 1968, p. 50.H. A. 0. Hill in ‘ New Trends in Bioinorganic Chemistry,’ed. R. J. P. Williams and J. R. R. F. Dasilva, Academic Press,London, 1978, p. 85.Patents. Patents should be indicated in the form: B.P.Jap.P. 20 101. Dates are indicated thus: B.P.666 776/1956.Patents which are applied for must always be given a year,e.g. B.P. Appl. 102/1982.357 450, 367 455-7. U.S.P. 1171 230, G.P. 436 1 1 2 4 ,Reports and Bulletins, etc.R. A. Allen, D. B. Smith, and J. E. Hiscott, ‘ RadioisotopeData,’ UKAEA Research Group Report AERE-R 2938,H.M.S.O., London, 1961.G. M. Sheldrick, SHELX-76, Program for Crystal StructureDeterminations, University of Cambridge, 1976.Material presented at meetings.R.G. Kidd and H. G. Spinney, presented at the 5th Inter-national Conference on Non-Aqueous Solutions, Leeds, 1976.H. C. Freeman, Proceedings of the 21st International Con-ference on Coordination Chemistry, Toulouse, 1980.Theses.A. D. Mount, Ph.D. Thesis, University of London, 1977.Reference to unpublished material. For material presented ata meeting, congress, or before a Society, etc., but not pub-lished, the following form is used:1 A. R. Jones, presented in part at the 28th Congress ofthe International Union of Pure and Applied Chemis-try, Vancouver, August, 1981.For material accepted for publication, but not yet pub-2 A. R. Jones, J. Chem. SOC., Dalton Trans., in the press.If the paper has been submitted to the Society, the paper3 A.R. Jones, J. Chem. SOC., Dalton Trans., in the pressFor material submitted for publication but not yet accepted4 A. R. Jones, submitted for publication in Angew. Chem.lished, the following form is used:number should be given:(2/556).the following form is used :For personal communications the following is used :3.8 NomenclatureFor many years the Society has actively encouraged theuse of standard IUPAC nomenclature and symbolism in itspublications as an aid to the accurate and unambiguouscommunication of chemical information between authors andreaders. Although the IUPAC rules for naming organiccompounds have now gained wide acceptance amongstchemists, mainly because they have been in existence for anumber of years, those for naming inorganic compounds areof more recent origin and for this reason their acceptance isless general.In order to encourage authors to use IUPAC nomenclaturerules when drafting papers, attention is drawn to the followingpublications in which both the rules themselves and guidanceon their use are given:xiINSTRUCTIONS FOR AUTHORS (1 983)Nomenclature of Organic Chemistry, Sections A, B, C, D,E, F, and H, Pergamon, Oxford, 1979 edn.Nomenclature of Inorganic Chemistry, Butterworths,London, 1971 (now published by Pergamon).Biochemical Nomenclature and Related Documents, TheBiochemical Society, London, 1978.A complete listing of all IUPAC nomenclature publicationsappears as an appendix to these Instructions.It is recommended that where there are no IUPAC rulesfor the naming of particular compounds or authors finddifficulty in applying the existing rules, they should seek theadvice of the Society’s editorial staff.3.9 Units and SymbolsThe Symbols Committee of The Royal Society, of whichThe Royal Society of Chemistry is a participating member,h.zs produced a set of recommendations in a pamphlet‘ Quantities, Units, and Symbols,’ 1975 (copies of this pam-phlet and further details can be obtained from the Manager,Journals, The Royal Society of Chemistry, Burlington House,Piccadilly, London, W 1 V OBN).These recommendations areapplied by The Royal Society of Chemistry in all its publica-tions. Their basis is the ‘ Systhe International d’Unites ’ (SI).A more detailed treatment of units and symbols with specificapplication to chemistry is given in the IUPAC Manual ofSymbols and Terminology for Physicochemical Quantitiesand Units (Pergamon, Oxford, 1979).Guidelinessfor the publications of the Society.An author willnot be denied any reasonable useage, but if non-SI units areused for critical data or for quantities measured to a highorder of accuracy (as opposed to the rough physical conditionsof an experiment), the definitive values will be expressed inSI units as well.The following will be the guidelines used:( a ) A metric system will always be used in preference to a( b ) SI will be the standard usage.(c) The units used to record the definitive values of ‘ criticaldata’ or quantities measured to high degree of accuracy willbe SI.( d ) When non-SI units are used they must be adequatelyexplained unless their definition is obvious (e.g.degreeCelsius, mmHg, g, h). The derivation of derived non-SI unitswill be indicated.( e ) Equations involving electrical quantities should norm-ally be those appropriate for use with SI (rationalized m.k.s)units. If authors wish to use equations suitable for e.s.u. ore.m.u. the lack of consistency with SI units must be explicitlynoted.non-metric one.( I ) Base-units. The SI base-units are given in Table I .Table 1. Base unitsPhysical quantitylengthmasstimeelectrical currentthermodynamictemperatureluminous intensityamount of substanceName of base-unitmetrekilogramsecondamperekelvincandelamoleSymbol for unitmkgASKcdmol( 2 ) Supplementnry units.The SI also includes two ‘ supple-Physical quantity Name of unit Symbol for unitmentary ’ dimensionless units as follows:plane angle radian radsolid angle steradian sr(3) Multiples cind sub-mnltiples. In the SI there is one andonly one basic unit for each physical quantity. Decimalfractions and multiples of these basic units may, however, beconstructed by use of certain prefixes (see Table 2). They mayalso be used with derived SI units.The combination of a prefix and a unit symbol constitutesa new single unit symbol; compounding of prefixes is notpermitted.Although it will not always be possible, particularly inTables, the general principle should be to choose a unit (i.e.including multiple or sub-multiple) such that the resultingnumerical value is between 0.1 and 1 000.(4) Derived units.Some derived units have special namesand symbols, and these are given in Table 3. Others do not(Table 4).(5) Symbol. The symbol for a unit will be printed in roman(upright) type, remains unaltered in the plural and does nottake a full point, i.e. 5 cm not 5 cm. or 5 cms or 5 crns.The symbol will be separated from the numerical value bya thin space.(6) Decimal fractions and multiples of SI units hacitig specialnames. These names are not part of the SI, but for the timebeing their use in the Society’s publications may continue.The list given in Table 5 is not exhaustive.(7) Units defined in terms of the best available experimentulTable 2.PrefixesFraction Prefix10-l1 o-210-310-9I 0-151 0-lL10decicentimillimicronanopic0femtoattoSymbol Multiple Prefix Symbol,d 10 deka daC 1 o2 hecto hm 103 kilo kP lo4 mega Mn lo9 giga GP 10” tera TfaTable 3. Derived units with special names and symbolsName SymbolPhysical of S1 for S1 Definition ofquantity unit unit SI unitenergyforcepowerelectric chargeelectric potentialdifferenceelectric resistanceelectric capacitancemagnetic fluxinductancemagnetic fluxdensityluminous fluxilluminationfrequencyjoulenewtonwattcoulombvoltohmfaradweberhenryteslalumenluxhertzJNWCVSTFWbH=.ImlxHzkg mz s-’kg m s-’ = J m Ikg m2 sC3 = J s - ’A skg m2 s-3 A = J A s-’kg m2 s-3 A-2 = V Akg m2 s - ~ A-’ = V skg m2 s - ~ A-’ = V A-’ sA2 s4 kg-1 m-2 = A s V-1kg s - ~ A-‘ = V s m-*cd srcd sr m-2S-’xINSTRUCTIONS FOR AUTHORS (1983)3.10 Notes for TypistsManuscripts must be typed in double-line spacing, singlesided on A4 paper, with margins at top, bottom, and left-handside of at least 4 cm.The first page should be set out as follows (see appendedexample on p.xvii):(i) Name and address for proofs.(ii) Title of paper, with capitals for first letter of eachnoun or adjective only.(iii) Authors' names; an asterisk should follow the name ofthe author who is to receive any correspondence.(iv) The address where the work was carried out; if this isdifferent from the present address of the asterisked author, afootnote indicating this present address should be included.Present addresses of other authors are not normally given.(v) Summary, preceded and followed by horizontal line,and typed in double-line spacing.(vi) Main text.Tables and captions for Figures should be typed on separateFor typing of headings see section 3.3.5; no underlining (tosheets at the end of the manuscript.values of certain physical constants.These units are not partof the SI. The factors for conversion of these units to SI unitsare subject to change in the light of new experimental measure-ments of the constants involved. Their use outside the restrictedcontexts to which they are appropriate should be discouraged.The following list is not exhaustive.Physical Name of Symbolquantity unit for unit Conversion factorenergy electronvolt eV eV = 1.6021 x Jmass unified atomic u u = 1.660 41 x kgmass unit(8) Other units now exactly defined in terms of the SI units.These units are not part of the SI.It is recognized that theiruse may be continued for some time but it is recommendedthat except in special circumstances they should be progres-sively abandoned in conformity with international recom-mendations. The list given in Table 6 is by no meansexhaustive. Each of the definitions given in the fourth columnis exact.Table 4. Derived units with no special names or symbolsPhysical quantityareavolumedensityvelocityangular velocityaccelerationpressurekinematic viscosity,dynamic viscositydiffusion coefficientelectric field strengthmagnetic field strengthluminanceSI unitsquare metrecubic metrekilogram per cubicmetremetre per secondradian per secondmetre per secondsquarednewton per squaremetresquare metre persecondnewton second persquare metrevolt per metreampere per metrecandela per squaremetreSymbol forSI unitm2m3k m-'m s-Irad s-'m s - ~N m-*m2 s-'N s rn-'V m-'A m-'cd m-'Table 5.Fractions and multiples of units with special namesName of Symbol Definition ofPhysical quantity unit for unit unitlengthlengthareavolumemassforcepressurepressureenergykinematic viscosity,dynamic viscositymagnetic fluxmagnetic flux densityconductancediffusion coefficient(magnetic induction)angstrommicronbarnlitretonnedynebarpascalergstokespoisemaxwellgausssiemenswClmb1tdY nbarPaergStPMxGSm = lo-' nmmmz1O-j m3 = dm3lo3 kg = Mglo5 N rn-'N mP210-5 N10-7 J10 m2 s-'lo-' kg m-' s-'Wb10-4 T51-Table 6.Units defined in terms of SI unitsPhysical quantitylengthmasstime *time *forceforcepressurepressurepressurepressureenergyenergyenergythermodynamic temperatureradioactivityName of unitinchpound (avoirdupois)minutehourkilogram-forcepound-forceatmosphereconventional millimetretorrpound-force per squarekilowatt hourthermochemical calorieI.T.caloriedegree Rankinecurieof mercuryinchSymbol for unitinIbminhIbfatmmmHgkgfTorrlbf in-*kW hcal(t hermochem.)CalIT"RCiDefinition of unit2.54 x lo-' m0.453 592 37 kg6 0 s3 600s9.806 65 N9.806 65 x 0.453 592 37 N101 325 N m213.5951 x 9.806 65 N m-*(101 325/760) N rn-'9.806 65' + 4 535.92376.45 16m-.23.6 x 104 J4.184 J4.1868 J(5/9) K3.7 x 10l6 s-'* Use of other common units (min, h, day) may continue in normal expressions of intervals of time.xvINSTRUCTIONS FOR AUTHORS (1 983)Specimen first page of typescriptProofs to: J. Dalton,Royal Society of Chemistry,Burlington House,Piccadilly,LONDONW1V OBNInclusion Properties of Structures of the Type (RSC),John Dalton, * Michael Faradajr, and William € I .PerkinRoyal Society of Chemistry, Burlington iIouse, Piccadilly,LONDON, IVlV OBN~~~~~~~ ~ ~ ~ ~The clathrating ability of various structures of thetype (RSC), has been studied.(RSC)6, exhibit considerable activity as host molecules,and exceptional stability is conferred by SAC substituents.Hexakis(alkylthio)benzenes,Recent reports of inclusion behaviour by hexakis(pheny1thio)-benzene, (PhSC),,' and some initial studies byR.S. Cahn,' led us to investigate the host-guest chemistryof further structures of the type (RSC),. We wereparticularly interested in the benzene derivatives (RSC),,which were expected to possess an attractive divisionalstructure.The multi-step synthesis of (RSC),, carried out over aperiod of several years, was achieved .. . . . . .indicate typography) is called for, as this will be done by theeditor. article.mentary publication number that will appear in the parent4.0 Deposition of Data: Supplementary Publi-cations SchemeBulk information (such as crystallographic structure factortables, computer programs, and output, evidence for amino-acid sequences, spectra, etc.), which accompanies paperspublished in the Journal of the Chemical Society may bedeposited, free of charge, with the Society's SupplementaryPublications Scheme, either at the request of the author andwith the approval of the referees or on the recommendation ofreferees and with the approval of the author.Under this scheme, authors should submit articles and thesupplementary material to the Journal simultaneously in thenormal way, and both will be refereed.If the paper is acceptedfor publication the supplementary material will be sent by theSociety to the British Library, Lending Division (Boston Spa)(BLLD), where it will be stored. Copies will be obtainable byindividuals both in the U.K. and abroad on quoting a supple-4.1 Preparation of MaterialAuthors will be responsible for the preparation of camera-ready copy according to the following specifications (althoughthe Society will be prepared to help in case of difficulty).(a) Optimum page size for text or tables in typescript: upto 30 cm x 21 cm.(b) Limiting page size for text or tables in typescript:33 cm x 24 cm.(c) Limiting size for diagrams, graphs, spectra, etc.:39 cm x 28.5 cm.(d) Tabular matter should be headed descriptively on thefirst page, with column headings recurring on each page.(e) Pages should be clearly numbered.It is recommended that all material which is to be de-posited should be accompanied by some prefatory text.Normally this will be the summary from the parent paper andxviINSTRUCTIONS FOR AUTHORS (1 983)authors will greatly aid the deposition of the material if aduplicate copy of the summary is provided.4.2 DepositionThe society will be responsible for the deposition of thematerial with the BLLD.The BLLD will not receive materialdirect from authors since the Library wishes to ensure that thematerial has been properly and adequately refereed.4.3 Action by the SocietyThe Society will receive a manuscript for publication to-gether with any supplementary material for deposition andwill circulate all this to referees in the normal way. When theedited manuscript is sent to the printers the supplementarymaterial will be sent for deposition to the BLLD.The Societywill add to the paper a footnote indicating what material hasbeen deposited in the Supplementary Publications Scheme,and the supplementary publication number.4.4 AvailabilityCopies of Supplementary Publications may be obtainedfrom the BLLD on demand by organizations which areregistered borrowers. They should use the normal forms andcoupons for such requests addressing them as follows:Mr.J. P. Chillag,British Library Lending Division,Boston Spa,Wetherby,West Yorkshire, LS23 7BQ, U.K.Non-registered users may also obtain copies of Supple-mentary Publications but should first apply for price quot-ations. These are available from the Loans Office at the aboveaddress.5.0 Publication of X-Ray Crystallographic WorkCrystallographic papers will be assessed for their chemical aswell as their crystallographic interest. Thus crystallographicwork carried out as part of a wider chemical study should notnormally be submitted for publication separately from theresults of that study. Papers reporting only the results ofcrystal structure determinations will not be accepted forpublication unless these results are considered to possessspecifically chemical significance.5.1 Presentation of Crystal DataThe following sequence should be employed (although notall items will be required in all cases) : (1) ‘ molecular ’ formulaand formula weight (M); (2) melting point (rn.p.); (3) crystalsystem; (4) unit cell parameters (translations in A) andvolume of cell (in A3); ( 5 ) measured density (Dm), no.of molecules in unit cell (Z), and calculated density (Dc);(6) F(000); (7) type(s) of X-rays used, absorption coefficient(p), and experimental methods; (8) space group and mole-cular symmetry implied; (9) opticardata.Example: C16H30BrN304, M = 408.3, orthorhombic bi-pyramidal, a = 7.52(2), b = 18.76(5), c = 27.90(10) A,U = 3 936 8L3, D, = 1.37 g cmP3, 2 = 8, D, = 1.38 g cm-j,F(000) 1712, space group Pbca (D2,,I5, No.61)’ Cu-K,radiation, single-crystal rotation and oscillation photographs.5.2 Atom NumberingThis should be explained in a graphic formula or in one ofthe diagrams. If there are differences from the chemicalnumbering system these should be pointed out. Each atom ofthe asymmetric unit should be assigned an arabic numeral inparentheses following the chemical symbol : C(2), 0(1), etc.Other symmetry-related atoms can be denoted by primednumerals: C(2’), O(l”), etc.; a particular number of primesis to be associated exclusively with a particular asymmetricunit. Alternatively, roman numeral superscripts can be em-ployed: C(29 . . . C(2IV).5.3 Atomic Co-ordinatesIn giving atomic co-ordinates, authors should state theirchoice of origin, and it is essential to emphasise the choicewhen it differs from that adopted in International Tables.For structures in the monoclinic and triclinic systems, it ishelpful also to list co-ordinates (in A) with respect to ortho-gonal axes, whose orientation to the crystallographic axesshould be specified.5.4 &ValuesWhen citing the R-value authors should state whether un-observed reflections have been included, and if so how.Theterms summed in the denominator should be F, and not Fc.When possible, some estimate of the accuracy of the F, dataought to be included.5.5 Structure FactorsAuthors must submit along with the manuscript a readabletable of structure factors for the referees’ inspection. Thetable should be prepared in accordance with the detail givenin section 4.1, so that it may be used for deposition. It mustbe arranged with the greatest economy of space possible [i.e.not less than two groups of columns (h, k, Z, F,, F,) to thepage (30 cm x 21 cm)]. All columns must be headed. A‘paste-up’ on white card of computer printout will beacceptable providing the quality of the printout is adequate.If the referees accept the paper the Society will deposit thestructure factor tables with the British Library SupplementaryPublications Scheme (section 4.1).5.6 Thermal ParametersUnless both specifically requested by the author and recom-mended by the referees for publication, vibrational parameterswill be routinely deposited with the structure factors. Wherevibrational parameters are to be published they should be inthe form of Ul, with units of A’.Referees may, at their discretion, recommend other materialfor deposition where in their view its inclusion in the parentpaper is not justified by its interest.5.7 DiagramsEach paper should contain a line drawing of the compoundunder discussion where appropriate in addition to the usualcrystallographic figures.6.0 Publication of Theoretical andCorn putat ional PapersAuthors should note the following guidelines for the prepar-ation of computational papers, so that the material can bepresented concisely and effectively.(i) Papers should be submitted to the appropriate journal:a paper containing innovations in theory to Faraday Trans-xviiINSTRUCTIONS FOR AUTHORS (1983)actions 11, one in which the computations are incidental to thechemistry to Perkin, Dalton, or Faraday Transactions I.Papers concerned mainly with computational details are un-likely to be accepted.(ii) The purpose of the paper and the precise objectives ofthe calculations performed should be clearly stated; the resultsobtained should be reported only in so far as they relate tothose objectives.(iii) Many papers use a routine procedure based on a welldocumented method, be it semi-empirical or ab initio. It isthen sufficient to name the particular variant, referring to keypapers in which the method was developed, to cite the com-puter program used, and to indicate briefly any modificationmade by the author. A review of theoretical background wouldbe out of place, but an author should say why he considersthe method adequate for his purposes.(iv) Extensive tabulation of numerical results, such as themagnitudes of atomic orbital coefficients, electron populations,contour maps of molecular orbitals and electron densities,and peripheral material of a similar nature, is normally un-necessary. Lengthy line-by line discussion of such material is,as a general rule, unacceptable. Where an author considersthat there is a special need to make such material available toother workers, as with highly accurate computations, forexample, then this may be deposited with the British Libraryas a Supplementary Publication. Such material should besubmitted with the main paper, clearly distinguished from it,and referred to in the main text.Xi
ISSN:1477-9226
DOI:10.1039/DT98300000va
出版商:RSC
年代:1983
数据来源: RSC
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