Synthesis and molecular structure of [CpRu(PPh3)(Phterpy-N,N′)]Cl complex: Hdentate nature of Phterpy and diterpy

Article abstract of DOI:10.1016/S0277-5387(96)00585-2

Ligand displacement reactions of the complex [CpRu(PPh₃)₂Cl] were investigated with N₃ terdentate ligands, 4′-phenyl-2,2′: 6,2″-terpyridine (Phterpy) and 1,4-bis(2,2′: 6′,2″-terpyridin-4-yl)benzene (diterpy). The [CpRu(PPh₃)₂Cl] reacted with these ligands to form stable complexes of the type [CpRu(PPh3)(Phterpy)]X (X = Cl^-, PF^-₆) and [{CpRu(PPh₃)}(diterpy){Ru(PPh₃)Cp}]X₂ (X = CL^- PF^-₆) where the respective ligands coordinate in a bidentate fashion. The X-ray crystal structure of the former complex was determined showing octahedral geometry about the metal center assuming the cyclopentadienyl ligand occupying three coordination sites and Phterpy acts as a bidentate ligand.