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Book Review Lecture Notes in Chemistry. Vol. 34 Unified Valence Bond Theory of Electronic Structure. Applications. By N. D. Epiotis

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edly due to the thorough editing which is characteristic for
the books in this series. It is to be hoped that a follow up
of this work will appear in the future covering the more recent literature.
Kees Vrieze [NB 659 IE]
Anorganisch Chemisch Laboratorium,
J. H. van’t Hoff Instituut,
Universiteit van Amsterdam
Lecture Notes in Chemistry. Vol. 34: Unified Valence Bond
Theory of Electronic Structure. Applications. By N. D.
Epiotis. Springer-Verlag, Berlin 1983. viii, 585 pp., paperback, DM 96.00.
The complete work by Epiofis on the theory of chemical
reactivity deserves a great deal of respect: it is exemplary,
comprehensive, of wide applicability, and eschews traditional viewpoints. The author considers the most widely
referred to quantum chemical method, the qualitative onedeterminant MO method, as being insufficient and exploits, in a skillful way, the positive features of both fundamental quantum chemical techniques, namely the molecular orbital and the valence bond methods. His procedure
permits analysis of a wide spectrum of diverse problems
concerning chemical reactivity in the electronic ground
state and in the excited state. The theoretical foundation of
the Epiotis procedure formed the subject of the 29th volume of the Series. With this procedure, relationships can
be brought to light which at first are unexpected or at least
not obvious. The scope of application of the theory is very
broad. This is reflected in the titles of the chapters; for example: Why d o organolithium monomers have strange
structures? Conformational isomerism of NzH4 and its
derivatives. Saga of “hypervalent” molecules. Why benzene prefers to substitute and an olefin likes to add? Frontier configuration and a new classification of annulenes.
The qualitative rationalization and prediction of “correlation effects” in “complex” ground state molecules. The author analyses these and numerous other problems in a way
which has some formal resemblance to the procedures of
Woodward and H o f f a n n , Longuet-Higgins, and Abrahamson, but the level of sophistication is higher and it corresponds to the level of configuration interaction. All these
features are, no doubt, very attractive.
I am afraid, however, that in spite of all the positive features, attempts to exploit the Epiotis theory can meet with
serious difficulties. Namely, I expect that it will not be
easy to convince chemists not only to read about the new
procedure but also to master it in order to make proper use
of it. I am afraid that even for good chemists who are
open-minded towards new theories it would be too labo-
rious. Admittedly, chemists have been able to manage even
more involved concepts and theories; however, these frequently offer numerical values useful for correlations or
even for calculating absolute values of physical characteristics. On the other hand simple, cheap, and efficient tools
introduced by Woodward and Hofmann and by Fukui are
also reliable and widely applicable (though not as widely
as the present theory). Rut in spite of the above-mentioned
feeling the Epiotis procedure does represent an important
contribution: do not hesitate to read it.
RudolfZahradnik [NB 647 IE]
J.-Heyrovski-Institute fur Physical
and Electrochemistry,
Czechoslovak Academy of
Sciences, Prague
A Manual of Chemical and Biological Methods for Seawater Analysis. By T. R. Parsons, Y. Maita, C. M . Lalli.
Pergamon Press, Oxford 1984. xiv, 173 pp., Paperback,
$ 8,95.--ISBN 0-08-030287-4
Reactive Molecules. The Neutral Reactive Intermediates in
Organic Chemistry. By C. Wentrup. John Wiley, ChiChester 1984. xi, 333 pp., bound, L 33.20.--ISBN 0-47187636-9
Molecular Diffusion and Spectra. By W. T. Coffey, M. W .
Evans, and P. Grigolini. John Wiley, Chichester 1984.
viii, 378 pp., bound, 32 47.50.-ISBN 0-471-87539-2
Oxygen and the Conversion of Future Foodstocks. Third
BOC Priestley Conference. The Royal Society of Chemistry, London 1984. viii, 471 pp., Paperback, L 18.00 (reduction for members of the Royal Society of Chemistry)-ISBN 0-85186-915-7
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1002
Angew. Chem. Int. Ed. Engl. 23 (1984) No. 12
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