Reactions between RuCl(C=CHBut)(PPh3)(η-C5Me5) and tertiary phosphites result in displacement of both vinylidene and tertiary phosphine ligands to give RuClP(OR)3}2(η-C5Me5) (R = Me, Ph). The crystal and molecular structures of RuClP(OPh)3}2(η-C5Me5) are reported.