Date Published: May 01, 2012
Publisher: International Union of Crystallography
Author(s): Omar bin Shawkataly, Siti Syaida Sirat, Ching Kheng Quah, Hoong-Kun Fun.
The title triangulo-triruthenium(0) compound, [Ru3(C30H32P2)(CO)10], contains a triangle of singly bonded Ru atoms. The phosphane-bridged Ru—Ru distance [2.9531 (2) Å] is significantly longer than the non-bridged Ru—Ru distances [2.8842 (2) and 2.8876 (2) Å] . The bis(diphenylphosphanyl)hexane ligand bridges the Ru—Ru bond. Each phosphane-substituted Ru atom bears one equatorial and two axial terminal carbonyl ligands, whereas the unsubstituted Ru atom bears two equatorial and two axial terminal carbonyl ligands. The dihedral angles between the benzene rings attached to each P atom are 72.75 (7) and 82.02 (7)°. The molecular structure is stabilized by an intramolecular C—H⋯O hydrogen bond involving a methylene group of the phosphane ligand and an axial carbonyl O atom, which generates an S(6) ring motif. In the crystal, molecules are linked via C—H⋯O hydrogen bonds into layers parallel to (100).
For general background to triangulo-triruthenium clusters with structures of the general type Ru3(CO)10L (where L is a group 15 bidentate ligand), see: Bruce et al. (1982 ▶); Coleman et al. (1984 ▶); Teoh et al. (1990 ▶); Diz et al. (2001 ▶); Shawkataly et al. (2006 ▶, 2011 ▶); Churchill et al. (1977 ▶). For the preparation of the title compound, see: Bruce et al. (1983 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶).