The rhodium bis-carbene complex [Rh(IPr) 2 (N 2 )Cl], where IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, has been synthesized and characterized. The complex is a rare example of a four-coordinate rhodium complex featuring nitrogen bound end-on. While quite stable as a solid under inert atmosphere, in solution the N 2 ligand has been found to be quite labile. This lability has been exploited in the synthe-