Reactions of tridentate phosphine ligand [HC(PPh 2) 3] with metal carbonyl clusters HRuCO 3(CO) 12 and H 3Ru 3Co(CO) 12 : synthesis and crystal structures of HRuCo 3(CO) 9 [HC(PPh 2) 3] and [formula omitted

Abstract

Two tetranuclear phosphine-substituted mixed metal clusters of ruthenium and cobalt were made by reactions between tridentate phosphine ligand HC(PPh 2) 3 and the clusters HRuCo 3(CO) 12 and H 3Ru 3Co(CO) 12. The tridentate phosphine ligand is coordinated to a Co 3 face in HRuCo 3(CO) 9[HC(PPh 2) 3] and to an Ru 2Co face in H 3Ru 3Co(CO) 9[HC(PPh 2) 3]. Both compounds containan unusual bridging hydride ligand on the Ru(μ-H)Co edge.