REVERSIBLE CARBENE CARBYNE INTERCONVERSION ON A TRINUCLEAR CLUSTER

被引：7

作者：

FORSTERLING, FH ^{[1
]}

BARNES, CE ^{[1
]}

机构：

[1] UNIV TENNESSEE, DEPT CHEM, KNOXVILLE, TN 37996 USA

来源：

ORGANOMETALLICS | 1994年 / 13卷 / 10期

关键词：

D O I：

10.1021/om00022a008

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Refluxing the carbene complex (Cp*Ir)(CpCo)2-(mu-CO)2(mu-CH2) (2) in toluene yields the carbyne hydride complex (Cp*Ir)(CpCo)2(mu-CO)(mu3-CH)(mu-H) (3). Variable-temperature NMR studies on 3 reveal two fluxional processes with different activation energies: slow exchange of the hydride ligand with the methylidyne hydrogen and rapid migration of the hydride ligand between different edges of the metal triangle. Exposure of 3 to CO at room temperature re-forms 2 quantitatively.

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页码：3770 / 3772

页数：3

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