K(0.8)Ag(0.2)Nb(4)O(9)AsO(4)

The title compound, potassium silver tetra­niobium nona­oxide arsenate, K(0.8)Ag(0.2)Nb(4)O(9)AsO(4), was prepared by a solid-state reaction at 1183 K. The structure consists of infinite (Nb(2)AsO(14))(n) chains parallel to the b axis and cross-linked by corner sharing via pairs of edge-sharing octa...

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Detalles Bibliográficos
Autores principales: Ben Amor, Rym, Zid, Mohamed Faouzi, Driss, Ahmed
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2008
Materias:
Inorganic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2961503/
https://www.ncbi.nlm.nih.gov/pubmed/21202442
http://dx.doi.org/10.1107/S1600536808015225
Descripción
Sumario:The title compound, potassium silver tetra­niobium nona­oxide arsenate, K(0.8)Ag(0.2)Nb(4)O(9)AsO(4), was prepared by a solid-state reaction at 1183 K. The structure consists of infinite (Nb(2)AsO(14))(n) chains parallel to the b axis and cross-linked by corner sharing via pairs of edge-sharing octa­hedra. Each pair links together four infinite chains to form a three-dimensional framework. The K(+) and Ag(+) ions partially occupy several independent close positions in the inter­connected cavities delimited by the framework. K(0.8)Ag(0.2)Nb(4)O(9)AsO(4) is likely to exhibit fast alkali-ion mobility and ion-exchange properties. The Wyckoff symbols of special positions are as follows: one Nb 8e, one Nb 8g, As 4c, two K 8f, one Ag 8f, one Ag 4c, one O 8g, one O 4c.

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