X-ray structure determination of the monoclinic (121 K) and orthorhombic (85 K) phases of langbeinite-type dithallium dicadmium sulfate
Abstract
The twinned low-temperature monoclinic (P21) and orthorhombic (P212121) phases of the type I langbeinite Tl2Cd2(SO4)3 have been determined. The monoclinic phase shows pseudo-orthorhombic symmetry. The rotation of the SO4 tetrahedra in the orthorhombic phase seems to be continuous with that of the monoclinic one.
- Publication:
-
Acta Crystallographica Section B
- Pub Date:
- December 2000
- DOI:
- 10.1107/S0108768100009514FILE: /proj/ads/abstracts/
- Bibcode:
- 2000AcCrB..56..921G
- Keywords:
-
- Langbeinite;
- Low temperature;
- Twinning