Crystal structure of caesium tetra­methyl­dithio­imidodiphosphinate

A supra­molecular two-dimensional polymer structure of caesium tetra­methyl­dithio­imidodiphosphinate is reported.
In the title crystal, the salt [CsMe2P(S)NP(S)Me2] is self-assembled as an undulating supra­molecular two-dimensional polymeric structure, poly[(μ4-tetra­methyl­dithio­imidodiphosphinato)caesium], [Cs(C4H12NP2S2)]n, which is parallel to the bc plane. The Cs cations are hexa­coordinated, being chelated by two thio­imidophosphinate groups and two sulfur atoms from neighboring ligands. The anions are linked to the Cs cations by Cs⋯S and Cs⋯N electrostatic inter­actions.