ELECTRON-TRANSFER REACTIONS IN IRIDIUM(III) DIALKYL COMPLEXES - ACTIVATION OF C-H BONDS ON OXIDATION OF [IRME2(ETA-5-C5ME5)(PR3)] (R = PH OR ME)

被引:31
作者
DIVERSI, P [1 ]
IACOPONI, S [1 ]
INGROSSO, G [1 ]
LASCHI, F [1 ]
LUCHERINI, A [1 ]
ZANELLO, P [1 ]
机构
[1] UNIV SIENA,DIPARTIMENTO CHIM,I-53100 SIENA,ITALY
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1993年 / 02期
关键词
D O I
10.1039/dt9930000351
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The iridium dimethyl complexes [IrMe2(eta5-C5Me5)(PR3)] (R = Ph or Me) react slowly or not at a with C-H bonds of aromatics R'H under severe conditions, but in the presence of catalytic amounts of [Fe(eta5-C5H5)2]+ or Ag+ the activation proceeds at room temperature to give [IrMe(R')(eta5-C5Me5)(PR3)] and methane; the intermediacy of iridium(IV) species has been substantiated by electrochemical and EPR studies.
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页码:351 / 352
页数:2
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