close

Вход

Забыли?

вход по аккаунту

?

Book Review Nuclear Magnetic Resonance for Organic Chemists. Edited by D. W. Mathieson

код для вставкиСкачать
are drawn from the results already discussed closes the text
of the main part of the book. Each chapter is introduced by a
short description of its contents. Interpretation of the experimental results is highly critical. The literature is almost
completely taken into account up to and including 1964.
Since the most important object of the book is to clarify the
electronic structure of radicals, the authors’ attempt to
banish theoretical treatment of the results to a brief mathematical appendix must be criticized. This division has the
result that many concepts and quantities are used in the
main part although their definition is to be found only in the
appendix. The reader thus needs some basic knowledge of
quantum chemistry.
The book doubtless fills a noticeable gap and should thus
be recommended to all who are concerned with the electronic
structure of simple molecules and/or ESR measurements,
and to every inorganic chemist. Printing and style are good,
but in spite of many good points the price seems to be too
E. K6nig
[NB 677 IE]
high.
Nuclear Magnetic Resonance for Organic Chemists. Edited by
D . W. Mathieson. Academic Press Inc., London-New York
1967. 1st Edit., ix, 287 pp., n u m e r o u s ’ w o n s , tables,
and spectra, 65 s/$ 10.50.
This book is a collection of lectures and practical exercises
(with solutions) that formed a summer course held for
chemists by the Royal Institute of Chemistry, London, in
1964.
The chapters are written by several authors hut coordinate
well with one another, and they present a cross-section of
high-resolution nuclear resonance spectroscopy in which
applications of the methods and analysis of the spectra,
rather than theory, are placed in the foreground.
After a short introduction into the general principles of
nuclear resonance spectroscopy ( N . Sheppard), chemical
shifts and spin-spin coupling are treated in detail and very
clearly ( J . A . Hvidge).
The next three sections treat the analysis of three-, four-,
and multi-spin systems (E. 0. Bishop), and the ABX spectral
type is dealt with in detail (C. N . Banwell).
The first part ends with chapters o n the dependence of
coupling constants o n stereochemical factors ( R . J . Abraham)
and a short account of the magnetic resonance of nuclei
other than hydrogen that are of interest to organic chemists
( J . Feeney).
The examples of spectral analysis comprise 22 very well
chosen and in part very difficult problems (with solutions),
which are discussed in detail and approached from the most
varied directions.
In sum, the book provides a good survey of the problems and
possibilities of nuclear resonance spectroscopy and can be
highly recommended to organic chemists interested in
H. Friebolin
[NB 664 IE]
structure determination.
Introduction to Mass Spectrometry. Volume 3 of the series
“Spectroscopy in Education”. By H. C . Hill. Heyden &Son
Ltd., London 1966. 1st Edit., xi, 135 pp., many illustrations, board 30 s or $ 4.50.
H . C. Hill is a n experienced worker in the English heavy
chemicals industry. In 135 pages he gives a concise survey
of the mass spectrometry of organic compounds. Experimental technique, methods of introducing the sample into the
ion source of the apparatus, and methods of recording the
spectra are discussed with exclusive reference to the AEI
apparatus (apparatus from a few other firms have a bare
mention). The mechanism of formation of fragments of
organic molecules in the electron-impact ion source is
treated in detail, and this lays the foundation for the next
318
section which is concerned with interpreting mass spectra
for elucidation of the structure of organic compounds. The
important rules for their interpretation are derived and
illustrated by means of examples. 18 spectra of “unknown
substances” are left for the reader to handle; unfortunately
they are rather one-sidedly chosen -- only one benzene
derivative, no heterocyclic compound, the remainder all
aliphatic or cycloaliphatic compounds.
The book can be recommended as a n introduction; but
anyone wishing to concern himself more deeply with methods
and apparatus of mass spectrometry will soon have to turn
to more detailed monographs. The title does not indicate
that this book concerns only an introduction to the mass
spectrometry of organic compounds and to the interpretation
of spectra for structural analysis of such compounds; the
many other uses of mass spectrometry are not mentioned.
H. Kienitz
[NB 670 IE]
Analysis of Copper and its Alloys. By W.T. Elwell and I . R .
Scholes. Pergamon Press, Oxford 1967. 1st Edit., xiii,
183 pp., 11 illustrations and 4 tables, 50 s.
This book sets out the various chemical procedures used for
analysis of copper and its alloys. Methods are described for
determination of 29 elements - Cu, Al, Sb, As, Be, Bi, B,
Cd, C, Cr, Co, H, Fe, Pb, Mn, Hg, Ni, N, 0, P, Se, Si, Ag,
S, Te, Sn, Ti, Zn, and Zr (Hf); these are preceded by general
considerations o n sampling.
Each chapter begins with a survey of the methods available,
indicating those which are at present most generally used,
always with references to the original papers; and each
chapter is divided according to the methods used for determination of the elements under consideration in respect of
the concentration ranges of interest.The analytical procedures
are formulated precisely and are provided with data concerning their applicability and - what is extremely relevant usually also their accuracy. Not only gravimetric and titrimetric methods, but also photometric techniques and some
instrumental methods (polarographic and atomic absorption
spectrometric) methods are described. The chapter on the
determination of non-metals - H, C, 0, N, and S - must be
singled out as particularly valuable.
The book is written by distinguished experts in the field,
from the laboratories of Imperial Metal Industries, England.
Only a few wishes remain unfulfilled: for instance, for photometric determination of some elements reagents are preferred
that can no longer be regarded as the most effective, e.g.
hydrogen peroxide for determination of Ti, or iodide for
determination of Bi; on the other hand, occasionally reagents
are preferred that - at least in our experience - have not
been generally adopted, e.g. zinc dibenzyldithiocarbamate
for photometric determination of Cu and p-nitrophenylazoorcinol for that of Be. Finally, the importance of temperature
in direct iodometric titration of Sn should have been more
strongly emphasized.
Elwell-Scholes can be most warmly recommended to all who
are interested in the analysis of copper.
G . Kraft
[NB 669 IE]
Bile Salts. By G . A. D . Haslewood. Methuen & Co. Ltd.,
London 1967, xi, 116 pp., several illustrations and tabIes,
27s 6d.
This little book gives a good summary of the chemistry,
biochemistry, and physiology of bile acids and their conjugates, without pretention to being an exhaustive monograph. It builds o n older collective books, and thus 71 % of
the references are to literature published after 1960. In
addition, very many unpublished observations from the
author’s laboratory are reported - and the author is among
the most knowledgeable workers in this field.
Angew. Chem. internat. Edit. / Vol. 7 (1968) / No. 4
Документ
Категория
Без категории
Просмотров
1
Размер файла
147 Кб
Теги
nuclear, chemists, book, organiz, magnetic, edited, mathieson, resonance, review
1/--страниц
Пожаловаться на содержимое документа