Cyclometallation reactions of 6-phenyl-2,2′-bipyridine; a potential C,N,N-donor analogue of 2,2′: 6′,2″-terpyridine. Crystal and molecular structure of dichlorobis(6-phenyl-2,2′-bipyridine)ruthenium(II)

Abstract

Metallated and non-metallated complexes of the ligand 6-phenyl-2,2′-bipyridine (HL) with ruthenium(II), rhodium(II), platinum(II), palladium(II), and gold(III) have been prepared. The crystal and molecular structure of the complex [Ru(HL)₂Cl₂][triclinic, a= 8.671(1), b= 10.360(2), c= 16.139(3)Å, α= 89.18(2), β= 81.26(1), γ= 67.11 (1)°, direct methods, least-squares refinement and Fourier difference synthesis, R= 0.0310, R′= 0.0359] indicates that it contains two N-bonded ligands and a cis arrangement of the chlorides.