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Book Review Carbenes Nitrenes and Arynes. By T. L. Gilchrist and C. W

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discussed in “Weissberger” in short chapters (Gordy, 1956;
Dailey, 1960); an entire volume is now devoted to this
method. It is a revised version of a book by Gurdy, Smith,
and Pambarulo, which was published by Wiley in 1953.
Contents : Introduction, Theoretical Aspects of Molecular
Rotation ; Microwave Transitions - Line Intensities and
Shapes ; Diatomic Molecules ; Linear Polyatomic Molecules ; Symmetric-Top Molecules, Asymmetric-Top Molecules; Centrifugal Distortion ;Nuclear Hyperfine Structure
in Molecular Rotational Spectra; Effects of Applied
Electric Fields ; Effects of Applied Magnetic Fields ; Internal Rotation ;Derivation of Molecular Structures ;Quadrupole Couplings, Dipole Moments, and the Chemical Bond.
The mathematical methods that are important to interpretation are described and physical data are given in ten
appendices covering 92 pages ; special mention should be
made of the table of molecular structure data established
up to 1969.
The fundamental principles of all microwave transitions
(nuclear magnetic resonances, electron spin resonances)
are discussed ; the application examples are concerned
mainly with the rotational spectra of gaseous molecules.
Instruments and measuring techniques are not described.
The intention of the authors was to write a textbook and
handbook for chemists, in which the theory is developed
“from the simplest approach consistent with essential
correctness and applicability”. They have succeeded well
in this aim. The printing add presentation are also outstanding.
Bernhard Schrader [NB 975 IE]
Elements of Chemical Kinetics. By M . Prettre and B. Claudel. Documents on Chemistry, Vol. 1. Gordon and
Breach, Scientific Publishers, London 1970. 1st ed., xvi,
184 pp., bound, $ IS.-.
The purpose of this new series, “Documents on Chemistry”,
is to bring together the various aspects of chemistry that
are often widely separated in more conventional presentations. Since it is intended to publish extensive original
papers and specific seminars for advanced students in both
French and English, the widest possible circle of readers
should be reached. The first volume is concerned with
elementary chemical kinetics and is mainly limited to
reactions connected with the conversion of covalent bonds
in simple molecules. In the first 93 pages concepts such
as the rate and order of a reaction, activation energy,
activated complexes, photochemical reactions, and chain
reactions are explained by means of examples. The authors
use a minimum of formal mathematics, but are also rather
sparing with their illustrations. The second part contains
descriptions of catalytic reactions, including acid-base
catalysis, adsorption of molecules on solid surfaces, and
the related contact catalysis, and there is even a very brief
look at the Mickaelis-Menten enzyme catalysis. Finally,
the significance of kinetic problems in the optimization of
syntheses under both laboratory and industrial conditions
is discussed. At the end of each chapter there are simple
numerical exercises and a few literature references, mostly
of historical interest.
The book can be used as a first introduction to the problems
and terminology of chemical kinetics, and is rather more
detailed and less general than the corresponding sections
in most of the physical chemistry textbooks. The few
printing errors in the English edition are not a serious
drawback. However, the phenomenological presentation
and the selection of the material (and the price) are hardly
likely to arouse any particular enthusiasm in chemistry
students for this subject.
F. M . Puhl [NB 985 IE]
Carbenes, Nitrenes and Arynes. By T. L. Gilchrist and
C . W Rees. Thomas Nelson and Sons Ltd., London 1969.
1st ed., 131 pp., bound, $21.-.
A number of review articles and monographs have appeared
in recent years on carbenes, nitrenes, and arynes. The
present book is the first attempt to give a comprehensive
picture of a field of research in which so much work has
been done.
Chapter 1 indicates the relationships between carbenes,
nitrenes, and arynes. Chapters 2-4 deal with the preparation and Chapters 5-8 with the reactions of these compounds. Finally, Chapter 9 shows their preparative applications.
In their introduction the authors express their intentions
of taking the fullest possible account of recent work (the
literature is covered up to 1968) and of providing a general
survey rather than an exhaustive treatment. These intentions have certainly been realized, but they require a rigid
selection of the individual reactions, so that many of them
are given very brief treatment. This is particularly true of the
Wolff rearrangement, described on p. 77. For example, the
occurrence of ketocarbenes is stated to be improbable,
and yet recent work suggests that they are found at any
rate in photolytic reactions. Chapter 9 on the range of uses
of carbenes, nitrenes, and arynes in syntheses could also
be expanded a little. The book contains very few factual
errors (pp. 11, 61, 62, 63, 106, and 108) and is practically
free from printing errors.
The text is written in a very clear and understandable style.
Most of the chapters contain references to the most important literature on the individual reactions. All in all,
it is well worth the money, and can be recommended both
to advanced students and to anyone who wants to become
acquainted rapidly with the field concerned.
Heinz Diirr
[NR 490 IE]
Registered names, trademarks, etc. used in this journal, even wifhonl spec$c indication thereof, are not to be considered unprotected by law.
0 Verlag Chemie GmbH, Weinheim
1971. -Printed in Germany by Zechnersche Buchdruckerei, Speyer/Rhein.
All rights reserved (including those of translation into foreign languages). No part of this issue may be reproduced in any form - by photoprint, microfilm, or any other means nor transmitted or translated into a machine language without the permission in writing of the publishers.
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Editor: H. Griinewald. Trmslstim Editors: A. J. Rackstraw and A . Stimson.
Pub1ishers:Verlag Chemie GmbH. (Managing Directors Jiirgen Kreuzhage and !fan.<Schermer) Pappelallee 3, 6940 Weinheim/Bergstr., Germany, and Academic Press Inc.
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P.0.Box 1291149 Germany, Telephone Weinheim (06201) 4031, Telex 465516 vchwh d.
Angew. Chem. internat. Edit. j Vol. 10 (1971) 1 No. I0
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