Bimetallic octahedral ruthenium-nickel carbido cluster complexes. Synthesis and structural characterization

Abstract

The reaction of Ru5(CO)15(μ5-C) with Ni(COD)2 in acetonitrile at 80 C affords the bimetallic octahedral ruthenium-nickel cluster complex Ru5Ni(NCMe)(CO)15(μ 6-C), 3. The acetonitrile ligand in 3 can be replaced by CO and NH3 to yield Ru5Ni(CO)16(μ6-C), 4, and Ru5Ni(NH3)(CO)15(μ6-C), 5, respectively. Photolysis of compound 3 in benzene and toluene solvent yielded the η6-coordinated benzene and toluene Ru5Ni carbido cluster complexes Ru5Ni(CO)13(η6-C 6H6)(μ6-C), 6, and Ru5Ni(CO) 13(η6-C7H8)(μ6-C), 7, respectively. All five new compounds were structurally characterized by single-crystal X-ray diffraction analyses. © 2013 American Chemical Society.