RbFe(HAsO(4))(2) and TlFe(HAsO(4))(2), two new hydrogenarsenates adopting two closely related structure types

Rubidium iron bis­[hydrogen arsenate(V)], RbFe(HAsO(4))(2), and thallium iron bis­[hydrogen arsenate(V)], TlFe(HAsO(4))(2), were grown under mild hydro­thermal conditions (T = 493 K, 7 d). RbFe(HAsO(4))(2) adopts the RbFe(HPO(4))(2) structure type (space group R [Image: see text] c), while TlFe(HAsO...

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Detalles Bibliográficos
Autores principales: Schwendtner, Karolina, Kolitsch, Uwe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2018
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6002822/
https://www.ncbi.nlm.nih.gov/pubmed/29951226
http://dx.doi.org/10.1107/S2056989018006473
Descripción
Sumario:Rubidium iron bis­[hydrogen arsenate(V)], RbFe(HAsO(4))(2), and thallium iron bis­[hydrogen arsenate(V)], TlFe(HAsO(4))(2), were grown under mild hydro­thermal conditions (T = 493 K, 7 d). RbFe(HAsO(4))(2) adopts the RbFe(HPO(4))(2) structure type (space group R [Image: see text] c), while TlFe(HAsO(4))(2) crystallizes in the (NH(4))Fe(HPO(4))(2) structure type (space group P [Image: see text]). Both compounds have tetra­hedral–octa­hedral framework topologies. The M (+) cations are located in channels of the respective framework and are disordered in TlFe(HAsO(4))(2), which may suggest that the M (+) cations can move in the channels.

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