Trirutheniurn imido cluster Ru3(CO)lo(p3-NPh) (I) reacts with tungsten hydride LW(CO)3H to afford heterometallic imido clusters LWRu2(CO)8(#-H) (p~-NPh), L = Cp, (IIa); L = Cp*, (IIh), whereas the respective phosphinidene complexes LWRu2(CO)8(#-H)(#3-PPh), L=Cp, (IXa); L=Cp*, (IXb), were generated via reaction of Ru3(CO)Io(#-H)(#-PPh2) with CpW(CO)3H and with Cp*W(CO)3H followed by thermolysis in the presence of carbon monoxide. Their molecular structure, solution dynamics, and the subsequent reaction with hexafluoro-2-butyne are presented.