[μ-Bis(diphenylarsino)methane-1:2κ2As:As′][bis(4-methoxyphenyl)phenylphosphine-3κP]-nonacarbonyl-1κ3C,2κ3C,3κ3C-triangulo-triruthenium(0) dichloromethane 0.15-solvate

Abstract

The asymmetric unit of the title triangulo-triruthenium compound, [Ru3(C25H22As2)(C20H19O2P)(CO)9]·0.15CH2Cl2, contains one molecule of the triangulo-triruthenium complex and one partially occupied dichloromethane solvent molecule. The dichloromethane solvent lies across a crystallographic inversion center leading to the molecule being disordered over two positions of equal occupancy. The bis(diphenylarsino)methane ligand bridges an Ru—Ru bond and the monodentate arsine ligand bonds to the third Ru atom. Both the arsine 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 phosphorus-bound benzene rings make dihedral angles of 72.7 (3), 80.9 (3) and 70.8 (2)° with each other. The dihedral angles between the two benzene rings are 79.9 (3) and 81.5 (2)° for the two diphenylarsino groups.