Regioselectivity of the addition of •CCl3 and •But radicals to (η2-C70)[Os(CO)(PPh3)2(CNBut)]n (n = 1, 2): an ESR study

被引：0
|
作者：
R. G. Gasanov
E. V. Martynova
M. V. Tsikalova
I. V. Stankevich
Yu. N. Novikov
机构：
[1] Russian Academy of Sciences,A. N. Nesmeyanov Institute of Organoelement Compounds
来源：
Russian Chemical Bulletin | 2010年 / 59卷
关键词：
metallofullerenes; ESR spectroscopy; electronic effects; phosphoryl, trichloromethyl, and ; -butyl radicals; regioselectivity; stability;
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摘要：
The addition of •CCl3 and •But radicals to (η2-C70)Os(CO)(PPh3)2(CNBut) (1) and (η2-C70)[Os(CO)(PPh3)2(CNBut)]2 (3) was studied by ESR spectroscopy. The metal fragment in complex 1 does not influence the regioselectivity of the addition of the radicals to it. The stability of the spin adducts formed upon addition of free radicals to complexes 1 and 3 is mainly governed by delocalization of the unpaired electron over three hexagonal rings.
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页码：1707 / 1712
页数：5
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