Diplatinum-center-mediated transformation of a substituted benzene to a cyclohexadienyl dianion and the breaking of C-Cl bonds:: Syntheses and structures of Pt2R4(ttab) and Pt2(CH3)4(ttab)Cl2

被引：32

作者：

Song, DT ^{[1
]}

Sliwowski, K ^{[1
]}

Pang, J ^{[1
]}

Wang, SN ^{[1
]}

机构：

[1] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

来源：

ORGANOMETALLICS | 2002年 / 21卷 / 23期

关键词：

D O I：

10.1021/om020641y

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two novel dinuclear platinum(II) complexes, Pt-2(CH3)(4)(ttab), 1, and Pt2Ph4(ttab), 2, have been synthesized from the reaction of 1,2,4,5-tetrakis(1-N-7-azaindolyl)benzene (ttab) with Pt-2(CH3)(4)(SMe2)(2) and [PtPh2(SMe2)](n) (n = 2, 3), respectively. The Pt(II) centers in both complexes are within van der Waals contact distances with the central benzene ring of the ttab ligand. Compound I was found to react readily with saturated chlorinated molecules such as CFCl3, CCl4, CHCl3, and CH2Cl2 at ambient temperature to yield a dinuclear platinum(IV) complex, Pt-2(CH3)(4)(ttab)Cl-2, 3, quantitatively. The central benzene ring of the ttab ligand in 1 was transformed to a 1,4-cyclohexadiene dianion in 3, accompanied by the formation of two internal Pt-C bonds. The structures of 1, 2, and 3 are determined by X-ray diffraction analyses.

引用

页码：4978 / 4983

页数：6

共 41 条

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