distmeiiug being the wrong halide ,on and tho wrong name for tho pseudohalogen on oaees 47 and 64. resoeetivelv. an extra .. ~ ~ y ~ ~011 w IgI w ~ ~~! ' ~ A uf ~ LIIL . . Ifirs1 re~ t ~ ,, i w pxge ~ .{4, a t ~ vl t m l w i , m lwrwew t l w t ~ s e,,f -(?c?' 8m.d "(Y)'' i n rv:t< IIOM d and (e) on page 157.
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reviewer especially found it to be a worthwhile reading supplement in a course in organometallic chemistry, in which current research papers (including literature references) were stressed in a seminar-type presentation. The book will, however, find little use as a reference work, and for this purpose the above-mentioned t,wovolume set by Caates, et al., is highly recommended. MARVIND. R a u s c ~ University of Massaehusetls Amhersl, OiOOP Problems in Organic Structure Determination
Addisa Auk, Cornell College. McGraw-Hill Book Co., New York, 1967. vii 184 pp. Figs. and tables. 25.5 X 18 cm. 53.95.
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This book is made n p of six parts: (1) Spectra-structnre correlations (24 pages); (2) Problems (100 problems, 132 pages);
(3) Answers: struct,ures and references; (4) Classification of synbhetic-products problems by reaction types; ( 5 ) Origin of samples used t,o provide spectra; and (6) Index of compounds. I t is a 7 by 10 in. paperback; the printing is excellent. The level of the book is indicated by the snthar's statement that "The problems require a knowledge of organic chemistry equivalent to that obtained in an int,roduetory course and a baokground in infrared, ultraviolet, nmr, and mass spectroscopy similar to that which can be obtained by studying "Spectrometric Identification of Organic Compounds" by R. M. Silverstein and G. C. Bassler, or "Applicstions of Absorption Spectroscopy of Organic Compounds" by John R. Dyer." The one-hundred problems are presented in approximate order of increasing difficulty. Many ir and nmr spectra are utilized and much less often actual nv spectra; instead absorption milxime. and r values are supplied. Approximately 20% of the problems use mass spectrnl data. Of the tots1 number of conlpounds involved in the problems, approximately 50% contain nonaromatic earbocyclie rings and 13% contain nonaromatic heterocyclic rings. Synthetic compoonds make up 80% of the problems, t,he rest. being of natural origin. In illmast all cases the data on which the problems are based are taken directly from the literature and references to the
original pnhlilieationr are given. This leature of the book should provide excellent incentive and encouragement to the student to go to thc original literature. Currently, this text is being used by one of us in a senior level discussion in orgenic chemistry. I t hay been an excellent, source of novel, exciting, and sophisticated chemical discussions; the problems are interesting and well presented. The book deserves to be widely used. Davm E.HORN and JAMER L. A. WEB^ Goucher College Rallimo7e, Towson, Md. 21204
Isotopes in Chemistry
J. F. Duncan and G. R. Cook. Oxford University Press, New York, 1968. xv 258 pp. Figs. and tables. 15.5 X 23.5 em. Paperbound, $4.40; clothbound, $8.80.
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In the preface the authors state that they "have tried to ahow what has been and what can be discovered about the fundamentals of chemical systems using isot,opic methods." They have written the book for third year undergraduate students rather than the specialist in radiochemktry. The first three chapters contain a. brief review of relevent background ma(Continued on page A981)
book reviews terial. To s certain extent t,his material is a revised condensation of portions of the "Alodern Radiochemical Practice" (1932) by the same anthors. Although the emphasis is on principles, the material on detection includes illustratiorrs of typical detectors and comments an some of the practical sspecls of their use. Chapter 4 on tracer chemistry deals with ahemical investigations which could be made by other means, but. which are more easily accomplished by the tracer method. The advantages and disadv m t ~ g e sof the tracer method relative l o other methods are pointed out. Chemical reaclion rate studies, diffxsion studies, the use of Fick's law, and eqidibrium stndies utilizing ion exchangers are dir, enssed in Chapter 5, which is entitled Zero Concentration Gradients. In the next chapter examples are given of the w e of isotopes to investigate the kinetics and mechanisms of homogeneous exchange reactions. Chapter 7 contains x atrnmary of isotope effects, i.e., the differences in physical properties and it, chemical equilibria and reaction rates which arise from differences in isotopic m&$ses. Several of the principles introduced in the preceding chapters are brought togelher in Chapter 8 in order to show iu greater det,ail the ways in which isolopes are used to study ittorgauic and organic reactiou mecha~lisms. The title of Chapter 9, Chemistry of the Nwlear Processes, is misleading in that it deals mailily with tho physics of ~iuelearprocesses. Isotopic methods of malysis m e described it, detail in Chapter 10. These are: tracer methods, e.g., determh~ation of the ellieienry of a chemical operation, use of radioactive reagents to form derivatives a m e ~ a b l e to isotopic analysis, isotope dilntiolr and radiometrio titration; and iron-tracel. methods, e . 5 , aclivation anslysis, thickness and dens~ty deberininstion by xbsorptioll, and X-ray emission analysis. The lad rhapler is a summary of the salient a ~ p e d sof the chemistry of those elements which have ,no atable isotopes. Tho book has several strong points. Thc principles of isotope applicaliat~s are preseuted clearly and in a mauner whirl, )lot oldy makes intel.est,ing readi~bg, but also impn1.1.; to the reader some of the feeling of the exeitemeut uf discovery that enn be olle of the rewards of 1.esearch. The specific examples aye well chosen and disai~ssionsoften inchde eommeuts O N experimental methods, data in graphical m d labnlar form, and apprapviate eqnatious lhat clarify the chemistry of the system or process being considered. I t is good to see that Lhrortghout the hook the a ~ ~ t h o rhave a uot hesitated to hnlanao thei~.mmmellls on the advantages of isotopic methods wilh camm c ~ > t, Hs I thc limitaliow m d the potellI.ial so\lt.ces of ewol. ill hoth the dala and Ihc inlcrp~.efaliolcof lhedatn. (Conlimn1 on page AO22)
Volume 45, Number 1 1 , November 1968
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A921
book reviews There are weak poillls which retlrm the nseful~,oss of the book. Most of the references are for works poblished hetween 1941) and 11360. Althongh t h e principles are still valid and the illustrat.ive examples are still appropriate, the reador will not be directed t o the morc yecent books and review articles. There are statements in the text which o ~ w~ o ed d not expect for a book with a preface having a 11366 date. One is the comment that elemel~t104 has not yet been synthesized. There are also omissions which may not be apparent t o a reader outside of t,he United States. For example, Pu-Be neutron sources are not mentioned in the discussion of laboratory neutron sources. The organization of the texl is awkward. Material relevant t o a given topic is frequently scattered thro~lghoot several chapters. The authors have attempted to alleviate the problem somewhat by citing coverage of tho same topic in esdier and later chapters. Unfortunately the index is not always a reliable guide t o the location of relevant material. I consider the hook to bo a valuable addition t o the standard works on noclear ehemisbry, radiochemistry and isotope technology. I expect t o recommend i l t o (1) students who wish t o do further reading on the uses of isotopes in chemistry t o supplement the brief treatment
.A922
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Journal o f Chemical Education
chock-full of references to post-1950 literat w e ; for example, the final two chapters on pi-electron systems (obviously a. special interest of the author) contain morc than 250 w c h citations. Rlathemstieal langimge characteristic of corrent research is introdneed reasonably early (projection operators on page 224, density matrices on page 354) and is subsequently used without apology (or need of apology). I n a style obviously origind, Professor Pilar introduces in the first two-thirds of the book many of t h e usod topics in a H E R ~ EM.I ~CLARK text of this title: origins of quantum theRensselaer Polylechnic Inslilule ory, elements of wave rnechnnics and Troll, Areto York 12181 simple applications, operetoys, angular momenta, matrix theory, group thcory, electron spin and many-electron atoms, Elementary Quantum Chemistry the variation method and pe~.twbalion theory, and elementary molecnlar s t n a Fmnk L. Pilar, Univemity of New tnre. Remaining chapters contain dismtsHampshire, 1)nrha.m. McGm,w-11iIl siolls of again usual topics: diatomic and Eaok Co., New York, l!l68. 726 pnlyatomic molecules, molecular orbital pp. 17.5 X 23.5 em. $1;,.50. and vale~meband theories and pi-electron systems, integrated, however, with t,opics "Elementary Qwmtnm Chemistry" is from the current literature not usually x first-class texl, meriting compnrisan f o ~ ~ niud introductory texts (and in some with the classics ill the field by Nyring, cases not in any texts at all). A few Walter and Kimbell, and Panling and selected examples are: in Chapter 13, s Wilson. Professor Pilar aims "lo provide lucid and lengthy (45 page) study of the a guide to the campnteliage quantum Ilartree-Faek self-eonsisle~~t-field method theory of atomic and molecular strueand cor~.elntian energy, incloding t.he twe," proceeding "on the lowest ppssible Siualwkhl formulaliotl oi pait. correlation level a t which triviality and misrepreenergies, lloothaan's eqnations and Mcsentation can he avoided more often than not!' These two qoot.ztinns pinW e e n y ' ~approach to their solution; iu Chapter 16, a discussion of forces in molepoint what. this reviower feels are the c d e s and the genersliaed I-lellmann-Feynrunique features of the text: its modern research flavor and rigor. The book is man theorem and of Mofitt's method of mrmally given in a n iutroductory course in nuclear chemistry, (2) stodents plaw ning t o work on a laboratory project or thesis involving t,he m e of isotopes, and (3) stndents (including gradusle stndents) and other facolty memhers who inquire about the possible w e of isotopes t o resolve s. difiierdty in a research project already underway. Ifopefullv, i t will be nossible t o enlist the aid of i k r e s t e d &,dents in npdsting t h e references and in improving the index.
