A cationic rhodium(I) N-heterocyclic carbene complex isolated as an aqua adduct

Ashley L. Huttenstine, Elizabethtown College
Edward Rajaseelan, Millersville University
Allen G. Oliver, University of Notre Dame
Jeffrey A. Rood, Elizabethtown College


The title complex, aqua-[1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene] (η -cycloocta-1,5-diene)rhodium(I) tetrafluoridoborate, [Rh(C H )(C H N )(H O)]BF , exihibits a squareplanar geometry around the Rh(I) atom, formed by a bidentate cycloocta-1,5-diene (cod) ligand, an N-heterocylcic carbene and an aqua ligand. The complex is cationic and a BF anion balances the charge. The structure exists as a hydrogenbonded dimer in the solid state, formed via interactions between the aqua ligand H atoms and the BF F atoms. 4 - - 8 12 27 36 2 2 4 4 4