Rhodium (I) Complexes of Quinoline Functionalised Heterocyclic Carbene Ligands

In this paper, two types of quinoline functionalized rhodium complexes were synthesized by stirring imidazolium salts with silver oxide to obtain silver carbenes. According to the method, the corresponding non chelated rhodium complexes were access by transmetallation of silver carbenes. Reaction of the non chelated rhodium complexes gave the chelated analogue that was insoluble in most solvents. All the non chelated complexes were structurally characterized by 1H NMR, 13 NMR, microanalysis and X-ray crystallography. The crystal geometry of the complexes adopted square planar structures. All the rhodium complexes were stable enough in air and with moisture.