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Acta Crystallogr B. 2011 Aug;67:293-301. doi: 10.1107/S0108768111018544. Epub 2011 Jul 18.

CaSeO4·0.625H2O--water channel occupation in a bassanite related structure.

Acta crystallographica. Section B, Structural science

Susanne Fritz, Horst Schmidt, Iris Paschke, Oxana V Magdysyuk, Robert E Dinnebier, Daniela Freyer, Wolfgang Voigt

Affiliations

  1. TU Bergakademie Freiberg, Institut für Anorganische Chemie, Leipziger Strasse 29, D-09596 Freiberg, Germany.

PMID: 21775808 DOI: 10.1107/S0108768111018544

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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