Synthesis and characterization of new RuCoM (M = Co, Mo) mixed-metal linked tetrahedral clusters containing (−)-DIOP and reaction of [(μ3-Se)RuCo2(CO)8]2((−)-DIOP) with Na[Mo(CO)3(η5-C5H4COCH3)]

Four mixed-metal Ru-Co linked tetrahedral clusters have been synthesized from reactions of diphosphine compound (−)-DIOP with [(μ3-E)RuCo2(CO)9] and [(μ3-E)RuCoMo(CO)8(CpC(O)CH3)] in n-hexane or THF at r.t., respectively. The metallic exchange reaction of [(μ3-Se)RuCo2(CO)8]2((−)-DIOP) with Na[Mo(CO)3(η5-C5H4COCH3)] has also been investigated.