Received 12 November 2009
In the title triangulo-triruthenium compound, [Ru3(C25H22As2)(C21H21P)(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 phenyl rings of the phosphine make dihedral angles of 86.89 (19), 82.1 (2) and 63.0 (2)° with each other. The dihedral angles between the two phenyl rings are 73.8 (2) and 82.2 (3)° for the two diphenylarsino groups. An intramolecular C-HO hydrogen bond stabilizes the molecular structure. In the crystal packing, molecules are linked into chains down the b axis via intermolecular C-HO hydrogen bonds.
For general background to triangulo-triruthenium derivatives, see: Bruce et al. (1985, 1988a,b); Shawkataly et al. (1998, 2004, 2009). For related structures, see: Shawkataly et al. (2009). For the synthesis of -bis(diphenylarsino)methanedecacarbonyltriruthenium(0), see: Bruce et al. (1983). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SJ2681 ).
The authors would like to thank the Malaysian Government and Universiti Sains Malaysia (USM) for the Research grant 1001/PJJAUH/811115. IAK is grateful to USM for a Postdoctoral Fellowship and to Gokhale Centenary College, Ankola, Karnataka, India, for postdoctoral study leave. HKF thanks USM for the Research University Golden Goose grant 1001/PFIZIK/811012. CSY thanks USM for the award of a USM Fellowship.
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