Early High Oxidation State−Late Low Oxidation State Mixed-Metal Organometallics: Examples of Oxo-Bridged Tungsten−Ruthenium Acetylide Clusters

[[abstract]]The heterometallic complexes (C5Me5)W(O)2Ru4(CO)10(μ4-PPh)(CCPh) (1), (C5Me5)W(O)2Ru4(CO)7(C7H8)(μ4-PPh)(CCPh) (2), and (C5Me5)W(O)2Ru5(CO)12 (μ4-PPh)(CCPh) (3), which contain examples of oxo-bridged tungsten−ruthenium bonds, have been prepared by condensation of Ru4(CO)13(μ3-PPh) and (C5Me5)W(O)2(CCPh). Their molecular structures demonstrate the coexistence of high oxidation state tungsten and low oxidation state ruthenium carbonyl fragments.[[fileno]]2010302010181[[department]]化學