(NH<sub>4</sub>)Ga(HAsO<sub>4</sub>)<sub>2</sub> and TlAl(HAsO<sub>4</sub>)<sub>2</sub> - two new RbFe(HPO<sub>4</sub>)<sub>2</sub>-type M<sup>+</sup>M<sup>3+</sup> arsenates
- Author(s)
- Karolina Schwendtner, Uwe Kolitsch
- Abstract
The crystal structures of hydrothermally synthesized (T = 493 K, 7-9 d) ammonium gallium bis[hydrogen arsenate(V)], (NH4)Ga(HAsO4)2, and thallium aluminium bis[hydrogen arsenate(V)], TlAl(HAsO4)2, were solved by single-crystal X-ray diffraction. Both compounds crystallize in the common RbFe(HPO4)2 structure type (R3c) and share the same tetrahedral-octahedral framework topology that houses the M+ cations in its channels. One of the two Tl sites is slightly offset from its ideal position. Strong O-H...O hydrogen bonds strengthen the network.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Technische Universität Wien, Naturhistorisches Museum Wien (NHM)
- Journal
- Acta Crystallographica. Section E: Crystallographic Communications
- Volume
- 74
- Pages
- 1504-1508
- No. of pages
- 5
- ISSN
- 1600-5368
- DOI
- https://doi.org/10.1107/S2056989018013567
- Publication date
- 09-2018
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104011 Materials chemistry, 105113 Crystallography
- Keywords
- ASJC Scopus subject areas
- Condensed Matter Physics, General Chemistry, General Materials Science
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/cd695a65-1547-455f-ba79-1ac323267189