Crystal structure of alluaudite-type Na(4)Co(MoO(4))(3)

The title compound, tetra­sodium cobalt(II) tris­[molyb­date(IV)], was prepared by solid-state reactions. The structure is isotypic with Na(3)In(2)(AsO(4))(3) and Na(3)In(2)(PO(4))(3). The main structural feature is the presence of infinite chains of edge-sharing X (2)O(10) (X = Co/Na) dimers, which...

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Detalles Bibliográficos
Autores principales: Nasri, Rawia, Fakhar Bourguiba, Noura, Zid, Mohamed Faouzi, Driss, Ahmed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2014
Materias:
Data Reports
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4186203/
https://www.ncbi.nlm.nih.gov/pubmed/25309171
http://dx.doi.org/10.1107/S1600536814016729
Descripción
Sumario:The title compound, tetra­sodium cobalt(II) tris­[molyb­date(IV)], was prepared by solid-state reactions. The structure is isotypic with Na(3)In(2)(AsO(4))(3) and Na(3)In(2)(PO(4))(3). The main structural feature is the presence of infinite chains of edge-sharing X (2)O(10) (X = Co/Na) dimers, which are linked by MoO(4) tetra­hedra, forming a three-dimensional framework enclosing two types of hexa­gonal tunnels in which Na(+) cations reside. In this alluaudite structure, Co and Na atoms are located at the same general site with occupancies of 0.503 (5) and 0.497 (6), respectively. The other three Na and one of the two Mo atoms lie on special positions (site symmetries 2, -1, 2 and 2, respectively). The structure is compared with similar structures and other members of alluaudite family.

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