Oxidatively induced metal-carbon bond cleavage reactions in iridium dimethyl complexes: formation of cationic pyridine and nitrosyl iridium(III) alkyl derivatives

被引:10
作者
Diversi, P
Ermini, V
Ingrosso, G
Lucherini, A
Pinzino, C
Simoncini, F
机构
[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy
[2] CNR, Ist Chim Quantist & Energet Mol, I-56126 Pisa, Italy
基金
美国国家卫生研究院;
关键词
iridium-carbon bond cleavage; electron transfer behaviour; EPR spectroscopy;
D O I
10.1016/S0022-328X(97)00761-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reaction of [Ir(Me)(2)Cp*(L)] complexes (Cp* = eta(5)-C5Me5; L = PPh3, PMePh2, PMe2Ph, PMe3) with equimolar amounts of [Fe Cp-2](+) in pyridine gives methane and the corresponding cationic derivatives [Ir(Me)Cp*(L) (pyridine)](+). Reaction with an excess of NOBF4 yields methane and [Ir(Me)Cp*(L)(NO)](2+) (L=PMe3, PMe2Ph, PMePh2) or [Ir(Me)(2)Cp*(NO)](+) and [Ir(Me)Cp*(L)(2)](+) (L = PPh3) via the formation of the primary oxidation products [Ir(Me)(2)Cp*(L)](+), which have been detected by EPR spectroscopy. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:135 / 139
页数:5
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