Synthesis and x-ray structures of some mono- and binuclear ruthenium complexes with bisphosphine ligands

摘要

The dinuclear complexes (RuCp*(mu-Cl))(2) (mu-dppm) (1) and (RuCp*(mu-Cl)}(2) (mu-dppe) (3) are obtained by reacting (RuCp*(mu(3)-Cl)](4) with dppm, and dppe, respectively. 1 is readily oxidized with AgCF3SO3, instead of chloride abstraction, to afford the dinuclear complex [{RuCp*(mu-Cl)}(2) (mu-dppm)](SO3CF3)(2) (2) with two metal centers connected by a single Ru-Ru bond. Under the same conditions, 3 decomposes to several intractable materials. Similarly to 1, RuCp*(dmpe)Cl reacts with AgCF3SO3 to afford the Ru(III) complex [RuCp* (dmpe)Cl](SO3CF3) (4) without no halide abstraction. The crystal structures of 2, 3, and 4 are presented.