SYNTHESIS AND MOLECULAR STRUCTURE OF [CPRU(PPH3)(PHTERPY-N,N')]CL COMPLEX - HDENTATE NATURE OF PHTERPY AND DITERPY

摘要

Ligand displacement reactions of the complex [CpRu(PPh3)(2)Cl] were investigated with N, 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)(2)Cl] reacted with these ligands to form stable complexes of the type [CpRu(PPh3)(Phterpy)]X (X = Cl-, PF6-) and [{CpRu(PPh3)}(diterpy){Ru(PPh3)Cp}]X-2 (X = Cl-, PF6-) 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. (C) 1997 Elsevier Science Ltd. [References: 47]