WHY THE ADDITION OF CO LEADS TO ACYL DECARBONYLATION IN A SUPPORTED RH DIMER COMPLEX

被引：5

作者：

JEN, SF ^{[1
]}

ANDERSON, AB ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV,DEPT CHEM,CLEVELAND,OH 44106

来源：

INORGANIC CHEMISTRY | 1992年 / 31卷 / 12期

关键词：

D O I：

10.1021/ic00038a062

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Iwasawa and co-workers have recently found that the addition of CO to a Rh dimer complex with an acyl ligand (bound to a silica support) causes decarbonylation accompanied by Rh-Rh bond breaking. Ordinarily decarbonylation occurs in the absence of CO pressure. On the basis of ASED-MO calculations, we find that the driving force for decarbonylation is the stability of thc nearly square-planar d8 Rh that is formed: [GRAPHICS] Here the Rh-Rh bond has been cleaved and a CO of the complex on the right forms a weak sigma-donation bond with the Rh on the left.

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页码：2651 / 2654

页数：4

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