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inorganic compounds
Single crystals of cadmium trioxoselenate(IV) monohydrate were obtained from aqueous solutions of H2SeO3 and [Cd(CH3COO)2].2H2O. CdSeO3.H2O crystallizes in the MnSeO3.D2O oP32 type. The structure contains buckled trans layers [CdSeO3.H2O]2i consisting of strongly distorted, vertex-sharing CdO5(H2O) octahedra and SeO32- ions, both of symmetry m. The H-atom positions were also determined, indicating that the H2O molecules have pseudo mm2 symmetry. They form an intralayer hydrogen-bonding scheme with approximately linear hydrogen bonds of distance d(OH
O) = 2.903 (3) Å. As a consequence, the [MSeO3.H2O]2i layers of the [MnSeO3.D2O] oP32-type monohydrates are held together by van der Waals interactions but not by hydrogen bonds.
O) = 2.903 (3) Å. As a consequence, the [MSeO3.H2O]2i layers of the [MnSeO3.D2O] oP32-type monohydrates are held together by van der Waals interactions but not by hydrogen bonds.
