Inorganic chemistry of the transition elements, vol. 6

Inorganic chemistry of the transition elements, vol. 6

Journal of Molecular Structure, 64 (1980) 293-300 o Elsevier Scientific Publishing Company, Amsterdam - Printed in The Netherlands Book reviews C...

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Journal

of Molecular Structure, 64 (1980) 293-300 o Elsevier Scientific Publishing Company, Amsterdam

-

Printed in

The Netherlands

Book reviews Chemistry of the Transition Elements, Vol. 6, Senior reporter B. F. G. Johnson, Specialist Periodical Report, The Chemical Society, London, 1978, pp. xiv + 503, price g35.00.

Inorganic

This volume, which follows the format of previous years, covers the period October 1975 to September 1976. The output of papers encompassed by the title is enormous and the authors have understandably resorted to a certain degree of selection. Nevertheless they have included over four thousand num-

bered references and in addition listed many reviews and tabulated numerous other references for this twelve month period so the book can claim to be

quite comprehensive. Inevitably, with eleven authors dividing their work into eight sections there is a small degree of repetition of the references, but there seems to be no duplication of their contents. In fact, the coverage and style are very good and certainly come up to the high standard set in the earlier volumes. The early transition elements have been reviewed by F. L. Bowden (titanium, zirconium, hafnium, vanadium, niobium and tantalum); P. F. Heveldt and D. J. Watson (chromium, molybdenum, tungsten, technetium and rhenium); R. Davis (manganese and iron); and by D. M. Johns and C. A. McAuliffe (cobalt, nickel and copper). These elements are classified in a conventional way by group and by period, but combining the second and third long periods. In these sections, binary, ternary and related compounds are separated from coordination compounds, which are usually divided by oxidation state, then subdivided by ligand donor types. Where appropriate, carbonyls, nitrosyls, cyanides, dinitrogen compounds and hydrido compounds are treated separately. The more noble metals are dealt with individually, under similar headings, but here cluster chemistry plays a more prominent role. J. Evans has reviewed ruthenium, osmium, rhodium and iridium while D. W. Clack has reviewed palladium, platinum, silver and gold. Zinc, cadmium and mercury are allocated a short chapter to themselves (J. A. S. Howell and P. Wyeth) as are the group comprising scandium, yttrium, the lanthanides and the actinides (F. J. Berry). In general, the features highlighted include structural, electrochemical, thermodynamic, magnetic, spectroscopic and bonding properties as well as kinetic, mechanistic and synthetic results. Organometallic compounds are not always reported since they are frequently reviewed elsewhere; bio-inorganic aspects frequently occur and are discussed. These specialist periodical reports are useful summaries which cover the fine details of their subjects, enabling researchers quickly to get the feel of a new subject or to search thoroughly through an old one; the author indexes are always a very useful feature. This report is no exception. The reporters are

294

to be congratulated on the successful completion of an enormous task and thanked for undertaking it; the gestation period for the volume seems to have been about two years. J. F. G. Carbon-23 NNR 23t~ed Orgmic Spectral Problems, by P. L. Fuchs am? C. A. Bunnell, Wiley, Chichester, 1979, pp. vi + 309, price 95.75 ~paperback~. The development of pulsed Fourier-transform NMR spectoscopy led to major progress in the field of carbon-13 NMR, which has become an indispensable tool in &ruct;ural and stereochemical studies of organic compounds. The measurement of C-13 spectra is nowadays available on a routine basis in most chemical laboratories so the training of students and graduate chemists in the use of the method is essential. In this respect the book by Fuchs and Bunnell is among the first to incorporate the C-13 NMR method along with the more familiar infrared, massspectral and proton NMR methods for solving organic structural problems. The book is a collection of the spectra of 125 “unknown” organic compounds of various degrees of complexity. For each compound, a computer-plotted mass-spectrum, a routine IR spectrum, a 90-MHz proton NMR (including decoupling experiments, when appropriate), a proton-decoupled and an offresonance C-13 NMR spectra are given, together with the exact mass of the highest m/e ion and the combustion elemental analysis data. The problems have been tested in teaching at Purdue University (U.S. A.) and found to be workable by senior undergraduate and postgraduate students. A very detailed, general method for solving one of the problems enables the student to follow a logical pattern for the determination of the empirical formula, identification of the presence or absence of typical functional groups and deduction of the structural formula. The approach is further illustrated by the solution of another ten problems. The answers to the remaining 114 problems are given in a separate book obtainable from the publisher. On the whole, the problems are well chosen and present a challenge to the student. The authors do not give their reasons for the omission of the uItraviolet spectral data normally included in such books, Apart from the purely educational aspect, these spectra could serve to confirm some of the structures. derived, and reject alternative structures. The discussion of the IR data in terms of wavelengths rather than wavenumbers is unfamiliar nowadays, at least in Europe. Zn conclusion, the book can be recommended to all persons interested in acquiring practice in organic structural elucidation by spectral methods, with particular emphasis on C-13 NMR.

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