Acta Cryst. (2009). E65, i11  [ doi:10.1107/S1600536809002517 ]

La variété -NaMoO₂(AsO₄)

S. Ben Hlila, M. F. Zid and A. Driss

Abstract: The title compound, sodium dioxidomolybdenum(VI) arsenate(V), -NaMoO₂AsO₄, was prepared by solid-state reaction at 953 K. In the crystal structure, the AsO₄ tetrahedra and MoO₆ octahedra (both with m symmetry) share corner atoms to form a three-dimensional framework that delimits cavities parallel to [010] where disordered six-coordinated sodium cations (half-occupation) are located. Structural relationships between the different orthoarsenates of the AMoO₂AsO₄ series (A = Ag, Li, Na, K and Rb) are discussed.

Online 28 janvier 2009

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