Reaction of the alkylindium(I) compound In-4[C(SiMe(3))(3)](4) with octacarbonyldicobalt: Bridging of the Co-Co bond by one or two In-C(SiMe(3))(3) groups

被引：31

作者：

Uhl, W ^{[1
]}

Keimling, SU ^{[1
]}

Hiller, W ^{[1
]}

Neumayer, M ^{[1
]}

机构：

[1] TECH UNIV MUNCHEN WEIHENSTEPHAN,INST ANORGAN CHEM,D-85747 GARCHING,GERMANY

来源：

CHEMISCHE BERICHTE | 1996年 / 129卷 / 04期

关键词：

tetraindane(4); indium(I); Co-Co bond; indium alkyl bridge;

D O I：

10.1002/cber.19961290406

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

tetrahedra-Tetrakis[tris(trimethylsilyl)methyl]tetraindane(4) (1) reacts with octacarbonyldicobalt to yield two products, depending on the stoichiometric ratio of the starting compounds: By replacement of one bridging carbonyl group a dicobalt monoindium derivative 2 is formed, which contains a Co-Co bond [256.81(5) pm] bridged by one carbonyl and one monoalkylindium group. While 2 is a monomer in benzene solutions, it dimerizes in the solid state by an interaction of the oxygen atom of the bridging carbonyl group to the coordinatively unsaturated In atom of a second molecule across a center of symmetry. Another compound (3) is formed by the replacement of both bridging carbonyl ligands, which exhibits a strongly distorted Co2In2 tetrahedron with normal Go-In bond lengths of 253.44(6) pm, but long Go-Co [280.14(6) pm] and In-In distances [336.18(6) pm].

引用

页码：397 / 400

页数：4

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