(η6-Benzene)dichlorido(chlorodicyclohexylphosphane-κP)ruthenium(II) chloroform monosolvate

The title compound, [RuCl2(η6-C6H6)(C12H22ClP)]·CHCl3, was prepared by reaction of [RuCl2(η6-C6H6)]2 with chlorodicyclohexylphosphane in CHCl3 at 323 K under argon. The RuII atom is surrounded by one arene ligand, two Cl atoms and a phosphane ligand in a piano-stool geometry. The phosphane ligand is linked by the P atom, with an Ru—P bond length of 2.3247 (4) Å. Both cyclohexyl rings at the P atom adopt a chair conformation. In the crystal, the RuII complex molecule and the chloroform solvent molecule are linked by a bifurcated C—H...(Cl,Cl) hydrogen bond. Intramolecular C—H...Cl hydrogen bonds are also observed.