K1.65V1.78W0.22O2(AsO4)2

The title potassium vanadium tungsten bis­(arsenate oxide) was synthesized by a solid-state reaction at 973 K. The crystal structure is isotypic with KVOPO 4 and contains a [ M VAs 2 O 10 ] ∞ framework built up from single M O 6 ( M = V+W) octa­hedra sharing corners with single VO 6 octa­hedra and A...

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Bibliographic Details
Published in:Acta crystallographica. Section E, Structure reports online Structure reports online, 2009-09, Vol.65 (Pt 9), p.i69-i69
Main Authors: Belkhiri, Sabrina, Kars, Mohammed, Mezaoui, Djillali
Format: Article
Language:English
Subjects:
Inorganic Papers
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Summary:The title potassium vanadium tungsten bis­(arsenate oxide) was synthesized by a solid-state reaction at 973 K. The crystal structure is isotypic with KVOPO 4 and contains a [ M VAs 2 O 10 ] ∞ framework built up from single M O 6 ( M = V+W) octa­hedra sharing corners with single VO 6 octa­hedra and AsO 4 tetra­hedra. This structure shows the existence of infinite [VAsO 8 ] ∞ and [ M AsO 8 ] ∞ chains running along the a and c directions, respectively. All atoms are located on general positions. The metal position M is statistically occupied by 78% V and 22% W.
ISSN:1600-5368
1600-5368
DOI:10.1107/S1600536809033133