close

Вход

Забыли?

вход по аккаунту

?

Book Review Structure of High-Resolution NMR Spectra. By P. L. Corio

код для вставкиСкачать
Structure of High-Resolution NMR Spectra. By P . L. Corio.
Academic Press, New York-London 1966. 1st Edit., xii,
548 pages, numerous illustrations, $ 15.00.
N M R spectroscopy is another subject that has today reached
the stage where a detailed treatment is possible only by a
separate study of its various aspects. P. L. Corio’s rendering
of the particularly important field of mathematical fundamentals of high-resolution spectra is therefore most welcome.
The first four chapters (127 pages) describe the physical principles of N M R spectroscopy and the quantum-mechanical
treatment of single and multiple spin systems. The five
chapters (320 pages) forming the main part of the book
embrace the theory of spectra, the analysis of spin systems
with two groups of magnetically equivalent nuclei, the
perturbation and moment theory, the analysis of symmetrical
spin systems, and the treatment of multiple quantum transitions, double resonance, and spin-echo experiments. These
descriptions are complemented by numerous illustrations of
spectra of the highest experimental quality. A 100-page
appendix contains mathematical expositions and numerical
data for certain spin systems (A2B, A3B. A4B, AzB2. A3B2).
T h e author is undoubtedly right in stating in the introduction
that his book is mathematical in character, and the chemist
who has limited knowledge of quantum mechanics is likely t o
find it difficult t o use the generally formulated relationships
t o solve his specific problems. Because of its formal approach
and because it makes no mention of e.g. computer analysis,
the book is less a practical guide than an all-embracing and
thorough derivation of the mathematical laws of the spectra.
It is therefore recommended as a reference and guide to the
N M R spectroscopist for all problems encountered in this
field. The detailed treatment of systems with magnetically
equivalent nuclei and the tracing of higher spin systems back
t o simple subspectra is in many instances of general interest.
H . Giinther
[NB 708 IE]
Heteroatom Ring Systems and Polymers. By H . R. ANcuck.
Academic Press. New York-London 1967. 1st Edit., xi,
401 pages, $ 16.50
Heteroatom-containing molecules with linear, branched, or
cyclic structures, particularly polymers consisting of such
compounds which contain silicon, phosphorus, boron, and
aluminum as structural units in addition t o carbon, oxygen,
sulfur, and nitrogen, have been the subject of discussion in
many publications during recent years. Rapid development
in this field has been promoted inter alia by a demand from
the aerospace industry for novel materials possessing remarkable properties.
The author is not so much concerned with reproducing the
available material in a fully comprehensive manner - such
an ambition could not in any case be fulfilled in 400 pages of
print - but rather aims at a systematic comparison between
the heterocycles in respect of similarities, for instance interaction of the “delocalized” x-electrons and the ‘‘localized’’
a-electrons (of aromatic character). This systematic treatment of similarities embraces the relationship between
molecular structures, x-bonds, and steric hindrance in the
specrfic hetero ring systems with examples selected from the
thermodynamics of polymerization, depolymerization, and
oligomerization of the heteroatom systems.
Chapters 1-4 are devoted to general and theoretical fundamentals, and in particular Chapter 2 discusses the atomic
structure and the theory of the chemical bond.
The author deserves the reader’s gratitude for proposing and
using a uniform nomenclature in the field. The IUPAC
committee on nomenclature should adopt these proposals if
order is t o be restored. (For example, there are five names
for the trimer of phosphorus nitrochloride, (NPC12),.) A
further welcome feature is the detailed survey of the possible
synthetic routes to cyclic heteroatom compounds, giving
281 literature references and some valuable hints. The preAngew. Chem. internat. Edit.
Vol. 7 (1968) 1 No. 7
sentation of polymers is limited to addition polymerization
reactions; polycondensations and other mechanisms leading
t o heteropolymers are not mentioned.
The reader is offered a large number of literature references,
particularly following Chapters 5 and 8, and well prepared
author and subject indexes. Having regard to the rapid
expansion of this field (especially in the USA) any survey,
and particularly one that deals with fundamentals, is welcome. It is to be hoped that supplementary volumes will be
published to keep the work up-to-date.
A. Gumboldt
[NB 710 I€]
The Chemistry of Non-Aqueous Solvents. Edited by J . J. Lagowski. Vol. I1 of the series “Acidic and Basic Solvents”.
Academic Press, New York-London 1967. 1st Edit. xv,
398 pp., ‘$ 18.50.
I n recent years the interest shown by chemists in reactions in
non-aqueous ionizing solvents has increased sharply, because
in these solvents novel reactions are possible that are observed neither in water nor in simple organic solvents. The
latest work on progress in the chemistry of non-aqueous
solvents has been edited by J . J . Lagowski and comprises
several volumes.
The first volume deals with the physicochemical behavior
of non-aqueous solvents (acid-base concepts, solvation,
electrode potential) and with the experimental methods involved in dealing with low-boiling and high-melting nonaqueous solvents. The present, second volume is devoted to
the chemistry of acid and basic solvents: halohydric acids
(F. Klanberg, M. Kilpatrick, and G . Jones), sulfuric acid,
nitric acid ( W . H . Lee), organic acid amides ( J . W . Vaughn),
and liquid ammonia ( J . J . Lagowski and G . A . M o c z y g e d a ) .
The articles describe the preparation of the anhydrous
solvents, their physicochemical properties are considered in
some detail, and selected chemical reactions in these solvents
are presented. An additional chapter, going beyond the scope
o f the present volume, describes the physical properties of
solutions of metals in non-aqueous solvents (J. C . Thompson)
in which solvated electrons are formed by ionization of the
metals in question. Naturally, solutions of the alkali metals in
ammonia are pre-eminent. A deficiency does exist in that there
is little mention of the versatile chemical reactions of metal
solutions (addition of electrons to aromatic systems, Birch
reactions, etc.), which are of special interest to the organic
chemist.
The text is supported by a wealth of tabulated data and
illustrations. A total of 1200 references provides a good
coverage of the principal original work, at least up t o
1964; only three of the seven contributions include more
recent literature.
The book’s clear, concise, and readable text, written by
competent authors, merits a wide distribution among all who
are interested in any way in non-aqueous solvents.
U . Schindewolf’
[NB 691 IE]
Solvated Electron. Advances in Chemistry Series No. 50.
Edited by R. F. Gould. American Chemical Society Publications, Washington 1965. 1st Edit., viii, 304 pp.. numerous
tigures and tables, cloth, $ 8.00.
Since the discovery only a few years back that solvated
electrons play an important role as intermediates in radiationchemical processes in aqueous and water-like systems, this
simplest and most reactive particle in chemistry (it was first
observed in ammonia 100 years ago and some of its properties were described 50 years ago) has become the subject o f
extensive study. The present book, which consists of 21
papers read at a symposium in Atlantic City, reviews the
present state of knowledge about solvated electrons.
Three of the lectures are theoretical in nature and are devoted
to the description of the quantum mechanics of solvated
5 57
Документ
Категория
Без категории
Просмотров
1
Размер файла
155 Кб
Теги
resolution, structure, corio, nmr, book, high, review, spectral
1/--страниц
Пожаловаться на содержимое документа