Oxidative Addition of S-S Bonds to Dimethylplatinum(II) Complexes: Evidence for a Binuclear Mechanism

被引：47

作者：

Bonnington, Kevin J. ^{[1
]}

Jennings, Michael C. ^{[1
]}

Puddephatt, Richard J. ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B, Canada

来源：

ORGANOMETALLICS | 2008年 / 27卷 / 24期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1021/om800776b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Oxidative addition of the S-S bond of S(2)py(2) (py = 2-pyridyl) to [Pt2Me4(mu-SMe2)(2)] occurs with displacement of Me2S to give [PtMe2(kappa(2)-S,N-Spy)(2)], 1. Oxidative addition of S2Ar2 (Ar = 2-pyridyl or Ph) to [PtMe2(NN)], NN = 2,2'-bipyridine or 1,10-phenanthroline, gives initially the binuclear Pt(III) complexes [{PtMe2(kappa(1)-S-SAr)(NN)}(2)], which react further with S2Ar2 to give [PtMe2(kappa(1)-S-SAr)(2)(NN)] and then, when Ar = 2-pyridyl, to give an equilibrium with free NN and complex 1. Evidence is presented that the S-S Oxidative addition to [Pt2Me4(mu-SMe2)(2)] occurs by a concerted mechanism whereas the reactions with [PtMe2(NN)] to give the binuclear complexes [{PtMe2(kappa(1)-S-SAr)(NN)}(2)] occur by a polar nonconcerted mechanism, involving a loosely bonded dimer [PtMe2(NN)](2).

引用

页码：6521 / 6530

页数：10

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