Unknown
International Union of Crystallography (IUC)
Publication Date:
2013-10-03
Description:
RbH2AsO4, rubidium dihydrogenarsenate (RDA), was synthesized by partial neutralization of an aqueous H3AsO4 solution with aqueous Rb2CO3. Its paraelectric room-temperature phase is composed of virtually regular tetrahedral [AsO2(OH)2]− anions and Rb+ cations, both located on \overline{4} positions. The [AsO2(OH)2] units are connected via O—H...O hydrogen bonds into a three-dimensional network, whereby the H atoms are equally disordered between the O atoms. The Rb+ cations are located in channels running along the directions and coordinated by eight O atoms located at the vertices of a snub disphenoid.
Electronic ISSN:
1600-5368
Topics:
Chemistry and Pharmacology
,
Geosciences
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