<i>M</i>In(HAsO₄)₂ (<i>M</i> = K, Rb, Cs)

Author(s)

Karolina Schwendtner, Uwe Kolitsch

Abstract

Potassium indium bis[hydrogen arsenate(V)], KIn(HAsO4)2, rubidium indiumbis[hydrogen arsenate(V)], RbIn(HAsO4)2, and caesium indium bis[hydrogenarsenate(V)], CsIn(HAsO4)2, were grown under mild hydrothermal conditions(T = 493 K, 7-8 d). KIn(HAsO4)2 adopts the KSc(HAsO4)2 structure type(space group C2/c), while RbIn(HAsO4)2 and CsIn(HAsO4)2 crystallize in thespace group R3c and are the first arsenate representatives of the RbFe(HPO4)2structure type. All three compounds have tetrahedral-octahedral frameworktopologies. The M+ cations, located in voids of the respective framework, areslightly disordered in RbIn(HAsO4)2. In KIn(HAsO4)2, there is a second Katomposition with a very low occupancy, which may suggest that the K atom caneasily move in the channels extending along [101].

Organisation(s)

Department of Mineralogy and Crystallography

External organisation(s)

Naturhistorisches Museum Wien (NHM), Technische Universität Wien

Journal

Acta Crystallographica. Section E: Structure Reports Online

Volume

E73

Pages

1580-1586

No. of pages

7

ISSN

1600-5368

DOI

https://doi.org/10.1107/S205698901701355X

Publication date

08-2017

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/c37b148e-2896-4edb-bbe4-c744d8fd5b87