Synthesis, structural characterization and solution dynamics of osmium-rhodium mixed-metal cluster [Os4Rh(μ-H)4(CO)13(η2-NC5H4C2H2)]

被引：15

作者：

Lau, JPK ^{[1
]}

Wong, WT ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2003年 / 6卷 / 02期

关键词：

osmium-rhodium; 2-vinylpyridine; 2D EXSY-experiment; X-ray crystallography;

D O I：

10.1016/S1387-7003(02)00706-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of [Os3Rh(mu-H)(3)(CO)(12)] 1 with an excess amount of 2-vinylpyridine in refluxing CHCl3 afforded a new cluster, [Os4Rh(mu-H)(4)(CO)(13) (eta(2) -NC5H4C2H2)] 2, in moderate yield. A pair of isomers 2a and 2b, which differ in configuration of the metallated vinylpyridine, exist in the solution of 2. Through the variable temperature EXSY experiment, the activation barrier (DeltaG(not equal)) for the isomerisation of 2 was determined to be 89.8 U mol(-1). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：174 / 177

页数：4

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