摘要:

AbstractThe extent to which it is possible to automate the determination of a structure from the data collected with automatic measuring equipment is discussed. The development of the automatic evaluation is synchronous with that of digital computer program.—Even the simple calculation of structure factors from the intensities (i.e. the analysis of the geometrical and physical intensity factors) takes several weeks when the many thousand reflections are processed “manually”, i.e. with a desk calculator. A large electronic computer, on the other hand, executes these calculations in a few seconds. Nevertheless, even the largest computers available at present are too small for many of the complex steps in the calculation and for the quantity of data involved. Evaluation methods which, owing to long computing times, can at present only be tested on relatively simple structures will become more attractive with the advent of machines with computing times in the nanosecond range.For corrigendum see DOI:10.1002/anie.196

ISSN:0570-0833    

DOI:10.1002/anie.196602671

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

摘要:

AbstractRecent advances in the chemistry of bromine and its inorganic compounds are covered under the headings of technology, properties and reactions, liquid bromine as an inorganic solvent, analysis, and new or newly studied compounds. Much of what is new is bromine chemistry is characteristic also of what is new in inorganic chemistry as a whole. That is, more detailed information about compounds and reactions is becoming available from the application of new instrumental and theoretical techniques.

ISSN:0570-0833    

DOI:10.1002/anie.196602801

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

摘要:

AbstractAt the present state of instrumentation and quantum‐mechanical approximations, diamagnetic measurements can supply information on chemical structure which complements the result of other approaches, such as infrared and NMR spectroscopy. General applicability and relatively low cost of equipment are among the advantages of this technique. There is growing interest in the relation to chemical shifts in NMR spectra and in the possibility offered by this technique for testing quantum‐chemical approximati

ISSN:0570-0833    

DOI:10.1002/anie.196602881

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

摘要:

AbstractThe surface tension of a solid, unlike that of a liquid, cannot be measured directly. After a discussion of the most important methods used so far, all of which are subject to uncertainty the determination of the surface tension of solids from the wetting equilibrium is described.

ISSN:0570-0833    

DOI:10.1002/anie.196602991

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.196603082

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.196603091

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.196603102

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.196603112

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.196603122

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.196603132

出版商:Hüthig&Wepf Verlag    

年代:1966

数据来源: WILEY