An unprecedented tridentate mode of co-ordination of a BINAP ligand: Synthesis and crystal structures of [Ru(η 5-C 5H 5){( R)- (BINAP)}] +CF 3SO 3− and Ru(η 5-C 5H 5){( R)-(BINAP)}I

Abstract

The syntheses and crystal structures of the title compounds are reported. The complex [Ru(η 5-C 5H 5){( R)-(BINAP)}] +CF 3SO 3 − is of particular interest in that it contains a tridentate BINAP ligand co-ordinated to the ruthenium through η 2- bonding to one of the naphthyl rings as well as through both phosphorus atoms. The possible implications of this type of bonding are discussed.