摘要:

AbstractE. m. f.'s of the cell, H2(g,p atm)/HClO4(m1), NaClO4(m2)/HClO4(m1), Hg2(ClO4)2(m3)/Hg were measured at 20°, 25°, 30° and 35°C. The E° value is expressed as E° = 0.8915–5.14×10−4T+5.70×16−7T2. The free energy for the reaction, Hg2(aq)+H2(g)=2Hg(l)+2H+(aq) is given by ΔF°= −41,119+23.70T‐26.3×10−2T2. The thermodynamic quantities, ΔF° = −36,389, ΔH° = −38,782 cal mole−1and ΔS° = −8.03 cal deg−1mole−1are given for the reaction, and ΔFlo=36.39, ΔHfo=39.78 Kcal mole−1and S° = 13.82 cal deg−1mole

ISSN:0009-4536    

DOI:10.1002/jccs.197100001

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractAn interesting habit of crystal growth of organic compounds in zone‐refiner 13 noticed. It is fully utilized to grow large single crystals in the zone‐refining tubes directly after zone‐melting pr

ISSN:0009-4536    

DOI:10.1002/jccs.197100002

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractThe close relationship between Raman spectroscopy and electronic spectroscopy is discussed in detail. It is found that information obtainable from these two fields are really complemental. Expressions for the contributions to the Raman scattering process from vibronic interactions and Condon effects are derived. The theoretical considerations are applied to calculate absolute Raman intensities of many diatomic molecules, to derive the selection rules of rotational Raman spectrum, and to interpret Raman spectra of organic crystals.

ISSN:0009-4536    

DOI:10.1002/jccs.197100003

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractA new technique which permits rapid and precise measurement of vapor pressure over dilute solutions was used here to investigate the intermolecular forces of acetone molecules in several inert organic solvents. In the dilute solution of acetone mole fraction less than 0.03, acetone dimers were found to be the main species in the solvents, cyclohexane and CCl4. And no associated species of acetone were found in benzene. The strength of dipole‐dipole interactions which stabilize the acetone dimer were found comparable to that of some hydrogen bonds and also greatly influenced by solvent

ISSN:0009-4536    

DOI:10.1002/jccs.197100004

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractThen‐hexane extracts ofMyristica cagayanensisMerr. was partitioned betweenn‐hexane and 85% ethanol. Triglyceride of myristic acid was the major constituent in the upper layer. Four crystalline compounds were isolated from the lower layer, one of which, C20H13O5, was tentatively assigned, from the spectroscopic data and chemical behaviour, as 2‐isopropyl‐3‐(3′, 4′‐methylenedioxy‐phenyl)‐4, 5‐methylenedioxy‐indanone‐1, or 2, 3‐dimethyl‐4‐(3′, 4′‐methylenedioxyph

ISSN:0009-4536    

DOI:10.1002/jccs.197100005

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractPartial alkylation of methyldichlorosilane and methylphenyldichlorosilane gave three new monochlorosilanes. Hydrolysis of methylhexylchlorosilane, methylbutylphenylchlorosilane, and methylpentylphenylchlorosilane gave corresponding silanols and siloxanes. The silanols are unstable in the atomosphere and automatically changed to stable disiloxanes which are well proved.

ISSN:0009-4536    

DOI:10.1002/jccs.197100006

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractTwo isomeric bis(trimethylsiloxy)naphthalenes and two isomeric bis(triethylsiloxy)naphthalenes were newly synthesized, their properties examined. The yield of 1,4‐bis(trialkylsiloxy)napthalenes was found to be less than other isomers by unknown reaso

ISSN:0009-4536    

DOI:10.1002/jccs.197100007

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractFor comparison with methylcholesteroxysilanes, cholesteroxysilanes having phenyl group attached directly to silicon atom have been synthesized, their structure proved, and their properties examined.

ISSN:0009-4536    

DOI:10.1002/jccs.197100008

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

ISSN:0009-4536    

DOI:10.1002/jccs.197100009

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

ISSN:0009-4536    

DOI:10.1002/jccs.197100010

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY