[μ-Bis(diphenylarsanyl)methane-1:2κ2As:As']nonacarbonyl-1κ3C,2κ3C,3κ3C-[(4-methylsulfanylphenyl)diphenylphosphane-3κP]-triangulo-triruthenium(0)

In the title triangulo-triruthenium compound, [Ru3(C25H22As2)(C19H17PS)(CO)9], the bis(diphenylarsanyl)methane ligand bridges an Ru—Ru bond and the monodentate phosphane ligand bonds to the third Ru atom. Both arsine and phosphane ligands are equatorial with respect to the Ru3 triangle. In addition, each Ru atom carries one equatorial and two axial terminal carbonyl ligands. The three phosphane-substituted benzene rings make dihedral angles of 57.91 (19), 84.31 (15) and 59.37 (18)° with each other. The dihedral angles between the two benzene rings are 60.9 (2) and 85.40 (18)° for the two diphenylarsanyl groups. In the crystal, molecules are linked into a three-dimensional framework by intermolecular C—H...O hydrogen bonds. Weak intermolecular C—H...π interactions stabilize the crystal structure