Revista de Ciencias Químicas

Synthesis, Characterisation and X-Ray Structure of Ferrocenyl N-Heterocyclic Carbene Complexes of Rhodium(I)

Abstract

Douglas Onyancha, Cedric McCleland and Thomas Gerber

The synthesis, spectroscopic and structural characterization of Rh(I) ferrocenyl N-heterocyclic carbene complexes are described. The in situ deprotonation of the imidazolium salts with KOBut and subsequent complexation to rhodium(I) proved to be an efficient route for their synthesis yielding good too excellent yields. The X-ray crystal structure of bromo(η4-1,5-cyclooctadiene)(1-ferrocenyl-3-propyl-1H-imidazol-2-ylidene)rhodium(I) was obtained and reveals substitution disorder of a bromine and``  chlorine atom on Rh(1) in the ratio of 0.96/0.04.