K(3)VO(2)(V(2)As(2)O(12))

Safa Ezzine; Mohamed Faouzi Zid; Ahmed Driss

doi:10.1107/S1600536809011775

K(3)VO(2)(V(2)As(2)O(12))

Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 2;65(Pt 5):i31. doi: 10.1107/S1600536809011775.

Authors

Safa Ezzine¹, Mohamed Faouzi Zid, Ahmed Driss

Affiliation

¹ Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences, Université de Tunis-ElManar, 2092 El-Manar, Tunis, Tunisia.

Abstract

A new potassium vanadium arsenate, tripotassium trivanadium bis-(arsenate) hexa-oxide, K(3)VO(2)(V(2)As(2)O(12)), was synthesized by a solid-state reaction at 743 K. The structure is built up from VO(5) pyramids, VO(4) tetra-hedra (.m. symmetry) and AsO(4) tetra-hedra linked together by corner-sharing to form a three-dimensional framework. The two crystallographically independent K(+) cations, one of which has .m. symmetry, are located in the inter-connected tunnels running along the a and b directions.