THE PHOTOCHEMICAL FORMATION OF ORGANOMETALLIC RADICALS FROM ALPHA-DIIMINE COMPLEXES HAVING A METAL-METAL, METAL-ALKYL OR METAL-HALIDE BOND

被引:14
|
作者
STUFKENS, DJ
VANOUTERSTERP, JWM
OSKAM, A
ROSSENAAR, BD
STOR, GJ
机构
[1] Anorganisch Chemisch Laboratorium, Universiteit van Amsterdam, J.H. van 't Hoff Instituut, 1018 WV Amsterdam
关键词
D O I
10.1016/0010-8545(94)80034-0
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
This article describes the homolytic splitting of metal-metal, metal-alkyl and metal-halide bonds by visible excitation of alpha-diimine complexes into their MLCT transitions. It is shown that mechanistic information about these reactions can best be obtained from the alkyl complexes which show a strong dependence of their quantum yield on the alkyl group. A detailed mechanism is presented for the photochemistry of fac-XMn(CO)3 (alpha-diimine)(X = halide) which complexes, quite unexpectedly, photodecompose into radicals Mn+(CO)3(alpha-diimine.-) via their mer-isomers.
引用
收藏
页码:147 / 154
页数:8
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