Rhodium and Iridium Complexes of N-Heterocyclic Carbenes via Transmetalation: Structure and Dynamics
Organometallics2003Vol. 22(8), pp. 1663–1667
Citations Over TimeTop 1% of 2003 papers
Abstract
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 ν(CO) of the carbonyl derivatives.
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