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Book Review Anorganische Chemie (Inorganic chemistry) by I. N6ray-Szab translated into German by A

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mechanism, the ratio ( 2 ) : ( 3 ) depends on the bridging group
R = 0 : 2 . 5 ; CO: 2.4; N CH3: 1.3; CH2: 1.0. This lack of
selectivity cannot be reconciled with normal electrophilic
a\
/
/
(3)
naphthalene substitution. The authors postulate a hydride
bridged cation as intermediate. / Chem. Ber. 96, 736, 747
(1963) / -Z.
[Rd 563/155 IE]
The mode of biosynthesis of biotin was elucidated by A . Lezius,
E. Ringelmann, and F. L.vnen by culture of Achromobacter
IV S on a medium containing i\ovaleric acid, to which 14C02
and [3-14C]cysteine were added, and by degradation of the
biotin ( I ) formed. Incorporation of the radiocarbon, derived
from the 14C02 occurred at the position of the urea-carbonyl
(C-2’) and the carboxyl group (C-10) of ( I ) , and that from
the I3-14CIcysteine at C-5 of ( I ) . It is assumed that ( I ) is
synthetized from cysteine, pimelyl-CoA, and carbamyl
phosphate. Pimelyl-CoA arises (analogous to the synthesis
of fatty acids) from 3 moles of malonyl-CoA. / Biochem. Z .
336, 510 (1963) / --De.
[Rd 566/156 IE]
Crystalline isoenzymes of lactic dehydrogenase (LDH) from
human organs were investigated by E. D . Wuchsmuth and
G . PJleger. They obtained the pure isoenzymes from kidneys,
heart muscle, and brain by extraction of the homogenized
tissue, centrifugation at 2200 g, precipitation at pH 4.85 with
acetic acid, addition of Ca phosphate gel (pH 7.2) and reelution with M/3 phosphate buffer, and repeated precipitation with ammonium sulfate to give crude crystals, which
were dialysed at pH 7.2 against M/30 phosphate buffer,
transferred to a Sephadex column, and eluted by a sodium
chloride gradient. The isoenzyme fractions (I-V) were
recrystallized 5-6 times with ammonium sulfate. The following isoenzymes were obtained pure (specific activities in
brackets): from brain 1-111, from kidney I and 11, and from
heart 1 and I1 (I: 35000, 11: 40000, and 1 1 1 : 53000; from
heart at 37 “C: I: 82000, 11: 92000). Isoeiizymes of the same
charge (electrophoresis) from various other organs gave
similar results, e.g. in the determination of substrate-dependence, inhibition by sulfate ions, and the pH-dependence of
the enzyme action, temperature coefficients, and heat
stability. / Biochem. 2. 336, 545 (1963) / -De.
[Rd 567/157 IE]
BOOK REVIEWS
Anorganische Chemie (Inorganic Chemistry) by I. NriraySzczbo’, translated into German by A . Beliczciy. Vol. 1 and
Vol. 11. Akademie-Verlag, Herlin 1959 and 1962. 1st Edit.,
Vol. 1: 664 pp., 34 illustr., Vol. I I : 813 pp., 22 illustr., both
volumes cloth-bound, tog. D M 97:- (about $25.-).
Volumes I and I1 of the three-volume work “Anorganische
Chemie” are now available in a German translation. The
general section of the first volume is concerned with atomic
structure, nuclear chemistry, and the basic features of chemical bonding. In the speciali/ed section of this volume, the
chemistry of the non-metallic elements (hydrogen, halogens,
chalcogens, nitrogen and carbon groups, and boron) is dealt
with. The second volume describes the chemistry of the metals
in main groups 1 and 2, aluminum, and the transition metals
in groups 3 to 7 of the periodic table. The discussion of the
remaining elements and their compounds is intended for the
third volume.
The author treats the very cxtensive subject-matter mostly
descriptively and dispenses almost completely with the
presentation of theoretical and systematic aspects in favor of
an extremely exhaustive account of the chemical and physical
properties of the elements and compounds. Hence “Anorganische Chemie” tends more to breadth than depth in approach and is more in the nature of a reference work than a
text-book. It also contains niimerous misprints and errors of
nomenclature which will not be dwelt on here. With future
editions in mind, however, some of the frequently recurring
inaccuracies should be mentioned. For instance, the difference between oxidation number and the number of bonds
formed ought to be made clear when “valency” is being considered; complex ions such as [NH4] +,[SO&, and [AlF#ought not to be called “radicals”, and the valency “dash”
ought to be reserved exclusively for the representation of an
electron-pair bond, so that obsolete formula representations
such as Na-N=N r N can be avoided.
The aim of the author, as stated i n the preface, to provide “a
small handbook of inorganic chemistry” has undoubtably
been attained. Unfortunately, its value is impaired by the
fact that the author almost invariably gives no references to
original papers and limits himself to the available hand- and
text-books, encyclopaedias, and monographs, in which the
most recent literature usually has not been considered. Nevertheless, this book by Nriray-Sztrhb does have a n abundance of
experimental and physical data and is therefore useful as a
reference book for preliminary orientations; in this connection, a carefully planned subject and formula index facilitates
rapid location of any chosen compound. From this aspect,
it can be recommended to all who are interested in a handy
reference book.
R. N m t [NB 31/50 IE]
Registered names, trademarks, etr. used in this journal, even without specific indication thereof, are not to be considered unprotected by law.
0 1963 by Verlag Chemie, Gmhl I.- Printed in Germany by Druckerei Winter, Heidelberg.
All rights reserved. N o 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 pub!ishers.
Editorial Office: Ziegelhiuser Landstrasse 35, Heidelberg, Germany, Telephone 24975, Telex 04-61 855, Cable address: Chemieredaktion Heidelberg.
Chief Editor: W . Foerst Editors: F. Boschke and H . Grunewald.
Publishers: Verlag Chemie GmhH. (President Eduard Kreuzhage), Pappelallee 3 , Weinheim/Bergstr., Germany, and Academic Press Inc. (President
Walter J. Johnson), 1 1 1 Fifth Avenue, New York 3, N.Y., U.S.A., and Berkeley Square House, Berkeley Square, London, W. I , England.
Correspondence concerning advertisements should be addressed toVerlag Chemie, GmbH. (Advertising Manager W.Thiel), Pappelallee 3, Weinheiml
Bergstr., Germany, Telephone Weinheim 3635, Telex 04-65 516. Cable address: Chemieverlag Weinheimhergstr.
.
404
Angew. Chem. internat. Edit. / Vol. 2 (1963) / No. 7
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