Titanium(IV) phosphinoamide as a unique bidentate ligand for late transition metals II: TiRu heterobimetallics bearing a bridging chlorine atom

Treatment of titanium phosphinoamide, (Ph2PNtBu)2TiCl2 (1), with [Cp∗RuCl]4 afforded Cp∗Ru(μ-Cl)(Ph2PNtBu)2TiO (3) through Cp∗Ru(μ-Cl)(Ph2PNtBu)2TiCl2 (2) as an intermediate. The molecular structure of 3 indicated the existence of intramolecular donor-acceptor interaction between the lone pair electrons of μ-Cl atom and the Lewis acidic titanium center.