The use of (cyclo-octadiene)(cyclo-octatriene)ruthenium(0) as the starting material for the synthesis of mono- and poly-nuclear ruthenium polyhydride phosphine complexes

Abstract

Ru(cod)(cot)(cod = 1-2 : 5-6-η-cyclo-octadiene; cot = 1-2 : 3-4 : 5-6-η-cyclo-octatriene) has been shown to be an efficient starting material for the synthesis of a number of ruthenium (0) and ruthenium hydiride phosphine complexes; with monophosphies Ru(cod)(cot) L [L = P(Ome)₃, Pme₃], the dinuclear complex RuH₄L₂(L = Pcy₃, cy = cyclohexyl) have been obtained whereas with diphosphines, the ruthenium (0) dinuclear complex Ru₂(cod)₂(cot)(dppm)₂(dppm = Ph₂PCH₂PPh₂), the hydrido trinuclear complex [RuH₂(dppm)₂]₃, and RuH₂(dppe)₂(dppe = Ph₂PCH₂CH₂PPh₂) are produced.