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
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.
引用
收藏
页码:3770 / 3772
页数:3
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