JOURNAL OF T H E A M E R I C A N CHEMICAL SOCIETY
EDITOR MARTIN STILES BOARD OF EDITORS THOMAS M. DUNN, Deputy Editor DOUGLAS Ε. APPLEQUIST CARL H. BRUBAKER, JR. JACK HALPERN
PETER A.
EMIL THOMAS KAISER
ROBERT G. PARR
Β. S. RABINOVITCH
BARRY M. TROST
S. SMITH, Book Review Editor
EDITORIAL ADVISORY BOARD GEORGE BÜCHI BENJAMIN P. DAILEY CARL DJERASSI PHILIP J. ELVING PETER R. GIRARDOT
GORDON G. HAMMES GEORGE S. HAMMOND JAMES L. HOARD KLAUS HOFMANN ROBERT E. IRELAND
Published by the AMERICAN CHEMICAL SOCIETY 1155 16th Street, N. W. Washington, D. C. 20036 BOOKS AND JOURNALS DIVISION JOHN Κ CRUM RUTH REYNARD Director
Director Assistant to the
CHARLES R. BERTSCH Head, Editorial Processing Department D. H. MICHAEL BOWEN Department
Head, Journals
BACIL GUILEY Head, Graphics and Production Department SELDON W. TERRANT Head, Research and Development Department
©Copyright, 1974, by the American Chemical Society. Published biweekly by the American Chemical Society at 20th and Northampton Sts., Easton, Pa. 18042. Second-class postage paid at Washington, D. C , and at additional mailing offices.
WILLIAM P. JENCKS MARTIN KARPLUS JOHN H. LAW
EARL L. MUETTERTIES ROBERT W. PARRY
Manuscripts for publication and books for review should be sent to the Editor, MARTIN STILES, Department of Chemistry, University of Michigan, Ann Arbor, Mich. 48104. Correspondence regarding accepted papers, proofs, and reprints should be directed to Editorial Processing Depart ment, American Chemical Society, 20th and Northampton Sts., Easton, Pa. 18042. Head: CHARLES R. BERTSCH. Senior Pro duction Editor: MARIANNE C. BROOAN. Production Editor: EILEEN B. SEGAL. Assistant Editors: EDWARD A. BORGER and DEBORAH A. WILSON. Editorial As sistants: SUSAN H. REICH, HOLLEY A. STEWART, and RODNEY L. TEMOS.
Advertising Office: Centcom, Ltd., 50 W. State St., Westport, Conn. 06880. The American Chemical Society and the Editors of the Journal of the American Chemical Society assume no responsibility for the statements and opinions advanced by contributors. Business and Subscription Information Send all new and renewal subscriptions with payment t o : Office of the Controller, 1155 16th St., N.W., Washington, D . C. 20036. Subscriptions should be renewed promptly to avoid a break in your series. All correspondence and telephone calls re garding changes of address, claims for missing issues, subscription service, the status of records, and accounts should be directed to Manager, Membership and Subscription Services, American Chemical
GLEN A. RUSSELL PAUL V. R. SCHLEYER FRANZ SONDHEIMER ROBERT ULLMAN EDEL WASSERMAN
Society, P.O. Box 3337, Columbus, Ohio 43210. Telephone (614) 421-7230. On changes of address, include both old and new addresses with ZIP code numbers, accompanied by mailing label from a recent issue. Allow four weeks for change to be come effective. Claims for missing numbers will not be allowed (1) if loss was due to failure of no tice of change in address to be received be fore the date specified above ; (2) if received more than sixty days from date of issue plus time normally required for postal deliv ery of journal and claim, or (3) if the reason for the claim is "issue missing from files." Subscription rates for 1974: to members, S22.00 per year; to nonmembers, $66.00 per year. Those interested in becoming members should write to the Admissions Department, American Chemical Society, 1155 16th St., N.W., Washington, D. C. 20036. Postage to Canada and countries in the Pan-American Union, $5.00; all other countries, $6.00. Air freight rates available on request. Single copies: cur rent year, $3.00. Rates for back issues and volumes are available from the Special Issues Sales Department, 1155 16th St., N.W., Washington, D. C. 20036. Subscriptions to this and the other ACS periodical publications are available on microfilm. Supplementary material not printed in this journal is now available in microfiche form on a current subscription basis. For information on microfilm or mi crofiche subscriptions, write Special Issues Sales Department at the address above.
Notice to Authors last printed in the issue of January 9, 1974
