Chlorido{[2-(dicyclo­hexyl­phosphano­yl)eth­yl]bis­[2-(dicyclo­hexyl­phosphan­yl)eth­yl]phosphane}platinum(II) chloride dichloro­methane hemisolvate tetra­hydrate

The title compound, [PtCl(C(42)H(78)OP(4))]Cl·0.5CH(2)Cl(2)·4H(2)O, crystallizes as a contact ion-pair with two close inter­molecular C—H⋯Cl(−) contacts between CH acidic αH atoms of the phosphane ligand and the chloride anion. A chloride ligand together with three coordinating P ligand atoms create a slightly distorted square-planar coordination environment around the Pt(II) center. An inter­molecular water O—H⋯Cl(−) and water O—H⋯OP hydrogen-bond network completes the coordination around the anion. In addition, a disordered CH(2)Cl(2) solvent mol­ecule cocrystallized within a hydro­phobic cavity spanned by the dicyclo­hexyl­phosphane ligands.