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Book Review Hopping Conduction in Solids. By H. Bfttger and V. V. Bryksin

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state of knowledge, in the form of twelve articles whose
topics have all been treated previously in various monographs, such as that on cytochrome P-450 which was recently reviewed (Angew. Chem. 98 (1986) 195; Angew.
Chem. int. Ed. Engl. 25 (1986) 294). It is an advantage for
both the already involved and the uncommitted reader to
be able to absorb in a condensed form, and in comparatively few pages, twelve topical and representative pieces
of work on which current ideas and activity in the bioinorganic field are based. Of course, the authors had to be
selective in presenting examples rather than reviews of an
encyclopedic nature.
Part 1 deals with proteins in which transition metal
atoms are the functional centers. Recent results on blue
copper proteins are discussed in the light of known structures (Elinor T. Adman). Under the heading cytochrome C
the main topics discussed by C . Greenwood are cytochrome
C peroxidase, and nitrate reductase with the redox processes on which its action depends. Under iron-sulfur proteins (A. J. Thomson). those treated as examples of this
group are the aconitase and nickel-containing hydrogenases, the latter being especially topical as new territory. In
the discussion of superoxide dismutases (A. E. G. Cass),
the emphasis is on reaction kinetics and mechanism. The
camphor-5-exo-hydrolyase derived from Pseudomonas putida is discussed in a particularly instructive way in the
chapter on the structure and chemistry of cytochrome P450 ( R . i . Murray, M. T. Fisher, P. G. Debrunner, S . G. Sligar). Thanks are due to the well-known Sussex group (D.
J . Lowe, R . N . F. Thorneley, B. E. Smith) for a short contribution on the virtually never-ending story of nitrogenase.
Part 2 is devoted to fragmentation, regulation, transport
and storage phenomena in proteins. In the chapter Metalloproteinuses (T. Hofmann), the emphasis is on new structural data for carboxypeptidase A (bovine pancreas) and
on microbial thermolysin. The abundance, structure, and
function of troponin C and calmodulin are discussed from
a comparative point of view ( R . J . A . Grand). M. Forgac
and G . Chin give a concise account of the (Na@,K@)and
(Ca’@)-ATP-ases, whose structural geometries have not yet
been clarified. I n the sections on metallothioneins (P. E.
Hunziger, J. H . R . Kagi), transferrins (J. H. Brook) and
oxygen-carrying proteins ( M . Brunori. M. Coletta, B. Giardina), the material has been summarized very successfully
from a learning standpoint, as the presentation is easy to
read, explicit, and not spoiled by too great an urge to show
the authors’ detailed knowledge of the literature.
This bold undertaking deserves one’s goodwill. It might
also effect a “metal catalyzed reaction” in promoting a
greater appreciation of the art of good presentation!
Walter Schneider [NB 771 IE]
Laboratorium fur Anorganische Chemie
der Eidgenossischen Technischen Hochschule
Zurich (Switzerland)
Hopping Conduction in Solids. By H. Bottger and V. V.
Bryksin. VCH Verlagsgesellschaft, Weinheim 1985. 398
pp., bound, DM 140.00.--ISBN 3-527-26451-5
The subject matter of the book is undergoing an explosive growth, as is well-documented by some thousand references, of which around 400 are from the period 19831985. The authors have succeeded in tracing shortcuts
through the sometimes densely proliferating original literature. At times, the presentation attains the clarity of textbooks for well-established fields of research; that is not always the case, but no blame for it may be put on a work
which impressively summarizes such a wealth of material.
The first chapter discusses basic elements in the theory
of hopping transport. Following a historical survey, the
presentation (for which only standard notions of solid
state physics are required) highlights the Kubo-formula,
the polaron canonical transformation, the Hartree-Fockdecoupling and the generalized master equation. The second chapter is devoted to the small polaron. The extensive
third chapter (more than half of the book) deals with hopping conduction in disordered systems, the main subjects
being DC- and AC-hopping conductivity, non-ohmic hopping conduction and the Hall-effect. Here the physical
principles of the theory of random media are also discussed: Anderson- and Mott-transitions, percolation, fractals, continuous-time random-walks, and effective-medium
theories. The following short fourth chapter deals with diffusive atomic (or ionic) motion classically, a topic which
might well have been treated at an earlier stage. The fifth
and final chapter is the mixing-pot for extensive results of
recent developments, and is a rich mine of interesting, in
some cases not yet solved, research problems.
Under the cover of a textbook, the work also displays
many facets of a review article and can be recommended
both to graduate students and to specialists in the field.
Reading is rendered easy by adequate author and subject
indexes, by very good cross references and by judicious repetitions in the text. Disregarding its price, the book is
well-suited as a basis for lectures and seminars.
Alexander Blumen [NB 777 IE]
Physikalisches Institut
der Universitat Bayreuth (FRG)
Regnrrrrd ~ ~ u i i i rrudemarhc.
e~.
erc w e d ,,t r h s j o i m a l . P U I U wherz I I D I morhed us w c h , ore iioi 10 he comidered iurp,orecrrd hi l m
0 V C H Vcrl.ip\gerell\ch;tfl mhH. D-6940 Weinherm. 1987 - Printed tn the Federal Republic of Germany by Zechnersche Buchdruckerei. SpeyerIRheln
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92
Angew. Chem. Int. Ed. Engl. 26 (1987) No. 1
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