Abstract
In the title crystal, the salt [CsMe(2)P(S)NP(S)Me(2)] is self-assembled as an undulating supra-molecular two-dimensional polymeric structure, poly[(μ(4)-tetra-methyl-dithio-imidodiphosphinato)caesium], [Cs(C(4)H(12)NP(2)S(2))] (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.