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Book Review Die Aciditt der CH-Suren (The Acidity of CH Acids). By H. F. Ebel

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with their true importance. Many reagents that were highly
praised by their discoverers have subsequently fallen short
of expectations. Similarly, many examples of special applications may be omitted if they should later show little scope
for generalization. The actual value of this book would undoubtedly be greatly increased by such periodic revisions and
expansions.
Hermann Stetter [NB 900 IE]
metals and alkaline earth metals, other metals, the transition metals, the lanthanoids, and the actinoids. The author
describes in turn the hydrides, halides, oxides, hydroxides,
sulfides, 0x0-acids, peroxides, and complexes. The last few
chapters are devoted to the biological importance, the geochemical occurrence and the abundance of elements, and t o
the preparation and utilization of elements and compounds.
The Biochemistry of the Nucleic Acids. By J. N . Davidson.
Methuen & Co. Ltd., London 1969. 6th Edit., xvi, 352 pp.,
numerous illustrations, bound 50 s.
The latest edition of the present book is intended by the
author as a n introduction to the biochemistry of nucleic acids
for students of biochemistry and chemistry. The book justifies
this claim in full, since it not only presents the established
results in this field skillfully, accurately, and in a n understandable manner, but also describes the aims and problems
of current research in the biochemistry of the nucleic acids.
This introduction has been written in the style of a monograph, and the reader is accordingly not entirely dependent
o n the author’s authority. More than two thousand literature
references enable the reader to acquire a deeper understanding of important relations and problems by reading the original literature. Another pleasing feature is that the reader
is not confronted with religious, philosophical, and ethical
speculations o n questions of molecular biology. I t is to be
hoped that this book will be made available to a wider circle
of students of biology, biochemistry, and chemistry by translation into German.
Karl-Heinz Scheit [NB 901 IE]
Anorganische Chemie. Eine grundlegende Betrachtung
(Inorganic Chemistry - A Fundamental Approach).
By 2. G. Szabd. From the Heidelberger Taschenbiicher
series, Vol. 63. Springer Verlag, Berlin-Heidelberg-New
York 1969. 1st Edit. VIII, 159 pp., 1 6 figures, 20 tables,
bound, D M 14.80.
“The sole aim of a modern lecture o n inorganic chemistry
must be to offer such a selection of fundamental data as will
permit a whole range of technical aspects t o be derived”.
The present book follows this principle, which is enunciated
in the foreword. All the fundamentals of general chemistry
are discussed, for example the periodic system, structure of
the electron shells, chemical bonding, electronegativity,
polymorphism, physical properties of the elements, acids
and bases, kinetics and energetics of chemical reactions,
solubility, complexes, and redox processes.
The physical properties of the elements are given starting
with hydrogen, followed by the noble gases, then the other
nonmetallic elements, finally the semimetals, the alkali
All this material is presented in a highly compressed form.
To benefit from reading it the beginner must simultaneously
study a comprehensive textbook. One would hope to find a
number of improvements in a later edition. The sections o n
chemical bonding, including special cases such as boron
hydrides and complexes, should be modernized. The
properties of acids and bases are best discussed on the basis
of Brernstedt’s definition. Redox reactions with normal
potentials belong in the initial chapters and not at the end
of the book; only then will the reader understand reactions
such as
C12 + 2Br- + Br2 + 2Cl-.
Some reworking is also called for in the section o n compounds. Examples of nonexistent compounds are NiH2,
Ni203, CuOH, Pb(OH)4, (NH&S in water. O n the other
hand, HCIz-, more than six boranes, efc., d o exist. Anyone
lecturing in inorganic chemistry will find i t worth his while
t o read this book.
Oskar Glemser [NB 904 IE]
Die Aciditat der CH-Sauren (The Acidity of CH Acids).
By H . F. Ebel. Georg Thieme Verlag, Stuttgart 1969. 1st
Edit., iv, 100 pp., 8 tables, board, D M 21.--.
The first one-third of the book contains a comprehensive
summary of the various possible methods of measuring
acidity, particularly detailed attention being given t o the
generally less familiar techniques for determining very low
acidities (e.g. from the rates of metalation reactions, basecatalyzed halogenation, o r base-catalyzed H / D exchange).
The main section of the book offers the reader a tabulated
survey of the acidities of approximately 200 C H acids
measured in aqueous solution, in polar protonic o r aprotic
solvents, and finally also in relatively or completely nonpolar aprotic media. The pK values varied over the extremely broad range from <- 11 (pentacyanocyclopentadiene) t o
+ 37 (isopropylbenzene). Finally, the last and shortest part
is devoted to a discussion of the importance of the various
intermolecular effects (in particular the inductive and conjugation effects, and also, to a smaller extent, hybridization)
capable of giving rise t o the appearance of C H acidity.
All in all, this little book contains so much useful information, presented in some cases with a novel approach, that it
will quickly be found indispensable by everyone in any way
concerned with the problems of CH acidity.
Friedrich Kluges [NB 908 IE]
Registered names, trademarks, etc. used in rhis journal, even without specific indication thereof, are not to be considered unprotected by law.
0Verlag Chemie,
GmbH, Weinheim 1970. - Printed in Germany by Druckerei Winter, Heidelberg.
All rights reserved. No part of this journal may be reproduced in any form whatsoever, e.g. by photoprint, microfilm, or any other means, without
written permission from the publishers.
Editorial office:Ziegelhauser Landstrasse 35, 6900 Heidelberg 1, Germany, Telephone 45075. Telex 46 1855 kemia d, Cable address: Chemieredaktion
Heidelberg.
Editor: H . Granewald. Translation Editors: A . 3. Rackstraw and A. Srimson.
Publishers: Verlag Chemie, GmbH. (Presidents Jcrgen Kreuzhage and HURS Schermer). Pappelallee 3, 6940 Weinheim/Bergstr., Germany, and
Academic Press Inc. (President Walter J. Juhnsun), 111 Fifth Avenue, New York 3, N.Y., USA, and Berkeley Square House, Berkeley Square,
London, W. l., England.
Correspondence concerning advertisements should be addressed to Verlag Chemie, GmbH. (Advertising Manager W.Thiel), 6940 Weinheim/Bergstr..
Pappelallee 3, Germany, Telephone Weinheim (06201) 3635, Telex 4655 16 vchwh.
818
Angew. Chem. internat. Edit. / Vol. 9 (1970)/ NO.I0
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