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Book Review Molecular Acoustics. By A. J. Matheson

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investigations. This has led the editors to present a collection of articles designed to give the inorganic chemist an
understanding of modem spectroscopic methods and to
provide him with some ideas about the application of these
methods to his own particular problems. In the light of this
avowed aim, it is understandable that practically every
one of the nine contributions begins with a detailed introduction to the experimental and theoretical principles of
the methods. Descriptions of special applications follow,
some of them selected from the individual authors’ work.
The treatment is not always comprehensive, which is
scarcely surprising in view of the size of the book. One
exception is the article by Ballhausen concerning the spectroscopy of ionic crystals, in which one problem encountered in this area is examined in a highly interesting manner.
Many a chemist will find this article quite difficult reading.
The present work will be found useful by anyone wishing
to acquaint himself with the principles and range of
application of the methods discussed. The extensive literature cited provides the reader with easy access to the original
work. The specialist in this field will not find much in the
way of new information.
H.-G. Kuball
[NB 91 IE]
Molecular Acoustics. By A . J.Matheson. John Wiley &Sons
Ltd., New York-London 1971, 1st Edit., xvi, 290 pp.,
numerous figures and tables, bound E 5.50.
Very detailed information on the interaction between
molecules in the gas phase, in liquids, in solids, and in high
polymers can be obtained from investigations on the propagation of high-frequency sound waves. In addition to
questions of energy transfer in gases and liquids Matheson’s
book deals especially with problems that are of interest to
the chemist, such as the determination of energy barriers
in molecules exhibiting internal rotation, as well as viscoelastic properties of dilute and concentrated solutions of
polymers, including the rotational isomerization of polymers and the helix-coil transitions in polypeptides. The investigations in solution, such as the association of ions by
ultrasonic waves, are also discussed. A short chapter is
devoted to the propagation of sound waves in solids, including semiconductors and ferromagnetics, and the influence of dislocations on the damping of sound waves.
of a nucleus with strong radio-frequency pulses of short
duration, followed by Fourier transformations of the resulting time-dependent free induction signal, i.e. pulse
Fourier transform (PFT) NMR spectroscopy. The PFT
method is faster and more sensitive than the CW technique.
These advantages, supported by the development of commercially available PFT-NMR spectrometers, have helped
to open up PFT-NMR spectroscopy. The present monograph takes this into account and fills a gap in the introductory NMR literature.
Fundamental concepts such as nuclear energy states, relaxation, nuclear precession, and free induction are explained accurately and concisely. Vector calculation is
briefly reviewed to allow a better understanding of nuclear
magnetic processes. Two sections dealing mainly with
equipment present an outline of instrumental requirements
regarding the spectrometer, pulse unit, and computer. The
authors describe relaxation mechanisms and refocusing
and spin echo methods for the measurement of relaxation
times. They thus stress the growing importance of relaxation times as structural parameters alongside chemical
shifts and coupling constants. Topics touched upon in
two special sections include nuclear nutation and spin
echo experiments as well as possibilities for the use of the
pulse technique to follow diffusion, exchange, and molecular dynamic processes.
102 sources are cited for further reading on methods. The
absence of a section on pulsed homonuclear and heteronuclear double resonance, which can now be carried out
as a routine method, is hardly surprising in view of the
planned restriction of the book to about 100 pages,
particularly since introductory monographs on nuclear
magnetic double resonance already exist. The book is
systematically organized and clearly and skillfully written,
and should therefore present no difficulty even to the less
experienced reader.
Eberhard Breitmaier
[NB 93 IE]
Stereochemistry of Carbohydrates. By J. F. Stoddarr.
Wiley-Interscience,New York 1971.1st Edit., xi, 249 pp.,
numerous illustrations, bound, f 7.00.
Theory and Methods. By 7: C. Farrar and E. D. Becker.
Academic Press, New York-London 1971.1st Edit., 115
pp., bound $ 7.50.
This is a splendid book, and one for which we have been
waiting a long time. It should fmd general acclaim not
only among carbohydrate chemists but also among all
those interested in questions of stereochemistry. Carbohydrate chemistry has contributed a great deal-for
instance in the field of conformational analysis-that is
important for all chemists working in organic chemistry
and biochemistry, and it is therefore most pleasing that a
systematic review of this field has at last appeared. Most
chemists are unaware of the wealth of material in the form
of excellent model substances that carbohydrate chemistry
has to offer for the study of stereochemical and mechanistic
problems. The present book should considerably facilitate
access to material that can sometimes be quite tricky.
For example, it is worth recalling that the problem of the
anomeric effect was discussed for years among carbohydrate chemists before it became familiar to all chemists
as a phenomenon generally encountered in heterocycles.
Two basic recording techniques are now available to the
NMR spectroscopist. One is the normal continuous scanning of the Larmor frequency range of a nucleus, i.e. continuous wave (CW) NMR spectroscopy, and the other is
the simultaneous excitation of all the Larmor frequencies
The book provides a clear survey of all the most important
aspects of stereochemistry. It is divided into five chapters,
an introduction being followed by a discussion of the
problems of constitution and configuration, conformation,
physical methods, and isomerism. The book is written in
The author deals briefly with the experimenta1 methods
used for the measurement of the velocity, dispersion, and
absorption of sound. The fundamental theoretical views
are presented in an easily understandable manner.
The book can be particularly recommended to those who
wish a general picture of the possibilities offered by the
investigation of the propagation and absorption of sound
for the treatment of various chemical problems.
H. Gg. Wagner [NB 92 IE]
Pulse and Fourier Transform NMR. Introduction to
Angew. Chem. internat. Edit. J Vol. 12 (1973) J N o . 1
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