Octa­carbonyldi-μ₂-hydrido-[μ₃-(1,3,5-trimethyl­phen­yl)phosphinidene](tri­phenyl­phosphane)-triangulo-triruthenium

In the crystal structure of the title compound, [Ru₃(C₉H₁₁P)H₂(C₁₈H₁₅P)(CO)₈], the triangular Ru₃ unit is capped with one mesitylphosphin­idene ligand. In the trigonal–pyramidal Ru₃P core, one Ru^II atom is coordinated by a triphenyl­phosphane ligand in a terminal fashion. Two hydride ligands bridge over two Ru—Ru bonds. These Ru—Ru bonds [2.9400 (4) and 2.9432 (4) Å] are slightly longer than the nonhydride-bridged Ru—Ru bond [2.8146 (4) Å]. The terminal triphenyl­phosphane ligand coordinates to the Ru^II atom, which is involved in two hydride bridges.