摘要:
[(CH3)3SO][CdCl3], M(r) = 311.93, orthorhombic, Pnma, a = 6.688 (1), b = 10.147 (2), c = 13.446 (2) angstrom, V = 912.5 (5) angstrom 3, Z = 4, D(x) = 2.270, D(m) = 2.25 (8) Mg m-3, lambda(Mo K-alpha) = 0.71073 angstrom, mu(Mo K-alpha) = 3.424 mm-1, F(000) = 600, T = 293 K, final R = 0.015, wR = 0.017 for 1256 independent observed reflections. [(CH3)3SO][CdBr3], M(r) = 445.3, orthorhombic, Pnma, a = 6.946 (1), b = 10.543 (2), c = 13.782 (2) angstrom, V = 1009.3 (6) angstrom 3, Z = 4, D(x) = 2.928, D(m) = 2.90 (8) Mg m-3, lambda(Mo K-alpha) = 0.71073 angstrom, mu(Mo K-alpha) = 14.053 mm-1, F(000) = 816, T = 293 K, final R = 0.014, wR = 0.016 for 808 independent observed reflections. These two compounds are isotypic. Each Cd atom is coordinated by six halogen atoms, giving a quasi-regular octahedron; the octahedra, linked by sharing two opposite faces, form linear anionic chains parallel to the a axis. The pyramidal thiocations (CH3)3SO+, located between the anionic chains, have only one symmetry plane. The H atoms were located.