Crystal structure of caesium tetra-methyl-dithio-imidodiphosphinate.

In the title crystal, the salt [CsMe2P(S)NP(S)Me2] is self-assembled as an undulating supra-molecular two-dimensional polymeric structure, poly[(µ4-tetra-methyl-dithio-imidodiphosphinato)caesium], [Cs(C4H12NP2S2)] n , which is parallel to the bc plane. The Cs cations are hexa-coordinated, being chelated by two thio-imidophosphinate groups and two sulfur atoms from neighboring ligands. The anions are linked to the Cs cations by Cs⋯S and Cs⋯N electrostatic inter-actions.