Acta Cryst. (2009). E65, m1628-m1629  [ doi:10.1107/S1600536809047783 ]

-Bis(diphenylarsino)methane-1:2²As:As-nonacarbonyl-1³C,2³C,3³C-[(2-methoxyphenyl)diphenylphosphino-3P]-triangulo-triruthenium(0)

O. bin Shawkataly, I. A. Khan, C. S. Yeap and H.-K. Fun

Abstract: In the title triangulo-triruthenium compound, [Ru₃(C₂₅H₂₂As₂)(C₁₉H₁₇OP)(CO)₉], the bis(diphenylarsino)methane ligand bridges a Ru-Ru bond and the monodentate phosphine ligand bonds to the third Ru atom. Both the phosphine and arsine ligands are equatorial with respect to the Ru₃ triangle. Additionally, each Ru atom carries one equatorial and two axial terminal carbonyl ligands. The three phosphine substituted phenyl rings make dihedral angles of 74.34 (12), 68.34 (12) and 85.45 (11)° with each other. The dihedral angles between the two phenyl rings are 87.56 (11) and 60.56 (11)° for the two diphenylarsino groups. In the crystal packing, the molecules are linked together into chains via intermolecular C-HO hydrogen bonds down the a axis. Weak intermolecular C-H interactions further stabilize the crystal structure.

Online 21 November 2009

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