Rhodium and iridium complexes of N-heterocyclic carbenes via transmetalation: Structure and dynamics

被引:530
作者
Chianese, AR [1 ]
Li, XW [1 ]
Janzen, MC [1 ]
Faller, JW [1 ]
Crabtree, RH [1 ]
机构
[1] Yale Univ, Dept Chem, New Haven, CT 06520 USA
关键词
D O I
10.1021/om021029+
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Rhodium and iridium complexes of N-heterocyclic carbenes (3a-c and 4a-c) were obtained by transmetalation from the corresponding Ag(I) complexes. The structure of 3b was verified by X-ray diffraction. The compounds display restricted rotation about the metal-carbene bond, the rate of which can be controlled by altering the steric bulk of the auxiliary ligands. Infrared spectroscopy provides an estimate of the electron-donor power of the carbene ligands from v(CO) of the carbonyl derivatives.
引用
收藏
页码:1663 / 1667
页数:5
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