(η(6)-Benzene)­dichlorido(dicyclo­hexyl­phenyl­phosphane)ruthenium(II) benzene sesquisolvate

The asymmetric unit of the title compound, [RuCl(2)(C(6)H(6))(C(18)H(27)P)]·1.5C(6)H(6), contains one mol­ecule of the Ru(II) complex and one and a half solvent molecules as one of these is located about a centre of inversion. The Ru(II) atom has a classical three-legged piano-stool environment being coordinated by an η(6)-benzene ligand [Ru—centroid = 1.6964 (6) Å], two chloride ligands with an average Ru—Cl bond length of 2.4138 (3) Å and a dicyclo­hexyl­phenyl­phosphane ligand [Ru—P = 2.3786 (3) Å]. The effective cone angle for the phosphane was calculated to be 158°. In the crystal, weak C—H⋯Cl hydrogen bonds link the Ru(II) complexes into centrosymmetric dimers. The crystal packing exhibits intra- and inter­molecular C—H⋯π inter­actions resulting in a zigzag pattern in the [101] direction.