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ANALYTICAL CHEMISTRY
Many texts dealing with infrared spectrometry have appeared in the past few years, but only one has dealt exclu sively with inorganic compounds, and that book was bibliographic in nature. Hence, this book which critically re views infrared spectra of various in organic compounds fills a definite void. The first section of the book deals with the theory of normal vibrations in a definitive fashion. Purposely and wisely omitted are subjects (such as rotational spectra and experimental techniques) already well covered by other authors. The discussion of inorganic com pounds is developed in a logical fashion starting with diatomic and triatomic molecules and then leading into the point groups of more complex sym metry. The final section of the book treats coordination compounds. The author does not attempt to cover all the references to the infrared spectra of inorganic compounds but has chosen examples to illustrate par ticular concepts. His interpretation of the various spectra are not always as detailed as Herzberg's classical text, which treats both inorganic and organic molecules, but the main spectral fea tures are emphasized in a concise and informative manner. There are several useful group frequency charts and, of course, the omnipresent group char acter tables. The author's writing is direct, clear, and to the point. This reviewer rec ommends this book as a valuable addi tion to the library of chemists inter ested in the spectra and structure of inorganic and coordination compounds.
Composition Tables. Data for Com pounds Containing C, H, N , O, S.
George H. Stout, xi + 391 pages. W. A. Benjamin, Inc., S465 Broad way, New York 25, Ν. Υ. 1963. $6. These tables were planned to elimi nate repetitive calculation of theoretical values of organic compounds. The ranges of the elements included are: C, 1 to 40; H, about C/2 to 2C + 2 + N; O,0 to 10; N, 0 to 5. All the molecular and atomic weights given as well as the per cent composi tions, were calculated using the 1961 atomic weights of the IUPAC and are based on carbon-12 as a standard. They were calculated on an IBM 709 computer. A set of preliminary tables provides multiples of atomic weights for the calculation of analyses of compounds
