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K(1.65)V(1.78)W(0.22)O(2)(AsO(4))(2).

ABSTRACT: 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 [MVAs(2)O(10)](?) framework built up from single MO(6) (M = V+W) octa-hedra sharing corners with single VO(6) octa-hedra and AsO(4) tetra-hedra. This structure shows the existence of infinite [VAsO(8)](?) and [MAsO(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.

SUBMITTER: Belkhiri S

PROVIDER: S-EPMC2970124 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature

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K(1.65)V(1.78)W(0.22)O(2)(AsO(4))(2).

Belkhiri Sabrina S Kars Mohammed M Mezaoui Djillali D

Acta crystallographica. Section E, Structure reports online 20090829 Pt 9

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 [MVAs(2)O(10)](∞) framework built up from single MO(6) (M = V+W) octa-hedra sharing corners with single VO(6) octa-hedra and AsO(4) tetra-hedra. This structure shows the existence of infinite [VAsO(8)](∞) and [MAsO(8)](∞) chains running along the a and c directions, respectively. All atoms are located on general positions. T ...[more]

PMID: 21577388

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