title: K(3)VO(2)(V(2)As(2)O(12)).
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.
authors.affiliation: Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences, Université de Tunis-ElManar, 2092 El-Manar, Tunis, Tunisia.
authors.forename: Safa
authors.initials: S
authors.lastname: Ezzine
authors.forename: Mohamed Faouzi
authors.initials: MF
authors.lastname: Zid
authors.forename: Ahmed
authors.initials: A
authors.lastname: Driss