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CaSeO4·0.625H2O--water channel occupation in a bassanite related structure
Susanne Fritz1, Horst Schmidt, Iris Paschke
1TU Bergakademie Freiberg, Institut für Anorganische Chemie, Leipziger Strasse 29, D-09596 Freiberg, Germany.
Abstract:
Calcium selenate subhydrate, CaSeO(4)·0.625H(2)O, was prepared by hydrothermal conversion of CaSeO(4)·2H(2)O at 463 K. From the single crystals obtained in the shape of hexagonal needles, 50-300 µm in length, the crystal structure could be solved in a trigonal unit cell with space group P3(2)21. The cell was confirmed and refined by high-resolution synchrotron powder diffraction. The subhydrate was characterized by thermal analysis and Raman spectroscopy.
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