[Bis(diphenyl­phosphino)methane-κ²P,P′][bis­(diphenyl­thio­phosphin­yl)methane-κ²S,S′]platinum(II) bis­(perchlorate) acetone solvate

The title complex, [Pt(C₂₅H₂₂P₂)(C₂₅H₂₂P₂S₂)](ClO₄)₂·C₃H₆O or [Pt(dppm)(dppmS₂)](ClO₄)₂·C₃H₆O, where dppmS₂ is bis­(diphenyl­thio­phosphin­yl)methane and dppm is bis­(di­phenyl­phosphino)methane, is the first example of a platinum(II) complex containing both dppm and dppmS₂ ligands. In the cation, the dppm ligand forms a non-planar four-membered chelate ring, while the dppmS₂ ligand forms a six-membered chelate ring with twist–boat conformation.