Qualitatively different reactivities of hydride reagents toward [(α-diimine)(η5-C5Me5)ClIr]+ cations:: Substitution, electron transfer (reduction), or stepwise hydrogenation

被引：27

作者：

Greulich, S ^{[1
]}

Klein, A ^{[1
]}

Knödler, A ^{[1
]}

Kaim, W ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Anorgan Chem, D-70550 Stuttgart, Germany

来源：

ORGANOMETALLICS | 2002年 / 21卷 / 04期

关键词：

D O I：

10.1021/om010529k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Whereas complex cations [(alpha-diimine)(eta(5)-C-5-Me-5)ClIr](+) with 2,2'-bipyridine and related aromatic ligands show only the expected Cl/H exchange on reaction with borohydrides, the systems [(RN=CHCH=NR)(eta(5)-C5Me5)ClIr](+) undergo reduction to the enediamido(2-)-iridium,(III) species [(RNCH=CHNR)(eta(5)-C-5-Me-5)Ir], even in protic media, if R is an axially shielding 2,6-dialkylphenyl group. In protic media the complex ion with R = cyclohexyl undergoes Cl/H exchange and stepwise hydrogenation of the a-diimine ligand via [(RHNCH2CH=NR)(eta(5)-C5Me5)HIr](PF6) to the structurally characterized compound [(RHNCH2CH2NHR)(eta(5)-C5Me6)HIr][BH3(CN)].

引用

页码：765 / 769

页数：5

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