STRUCTURE OF 1,3-BIS(TRIMETHYLSILYL)-2,4-BIS(TRIMETHYLSILYLAMINO)-2,4-DITHIOXOCYCLODI-LAMBDA-5-PHOSPHAZANE, [ME3SINHP(S)NSIME3]2

[(CH3)3SiNHP(S)NSi(CH3)3]2, M(r) = 476.88, monoclinic, P2(1)/n, a = 13.587 (4), b = 6.634 (2), c = 15.328 (4) angstrom, beta = 99.82 (2)-degrees, V = 1361.4 (7) angstrom 3, Z = 2, D(m) = 1.165 Mg m-3, Mo K-alphaBAR, lambda = 0.71073 angstrom, mu = 0.44 mm-1, F(000) = 512, T = 295 K, R = 0.036 for 2334 unique observed reflections. The structure is composed of isolated molecules situated on centres of symmetry. The molecules are arranged in layers and held together by weak intermolecular forces as demonstrated macroscopically by a softness and plasticity of the crystals.