Acta Cryst. (2003). E59, i65-i67  [ doi:10.1107/S1600536803007001 ]

K₂MoO₂P₂O₇

M. F. Zid, A. Driss and T. Jouini

Abstract: Dipotassium molybdenyl diphosphate is built up from ribbons of MoO₆ octahedra linked to P₂O₇ groups running along the c axis. The K⁺ cations are located in the channels delimited by anionic (MoO₂P₂O₇)_n ribbons. The structure contains MoP₂O₁₁ units, in which each P₂O₇ group shares two of its apices with an MoO₆ octahedron. The title compound is isotypic with (NH₄)₂MoO₂P₂O₇. K₂MoO₂P₂O₇ (one-dimensional) is related structurally to Na₂VOP₂O₇ (two-dimensional) and -BaV₂(P₂O₇)₂ (three-dimensional), all of them being built up from MP₂O₁₁ (M = Mo, V) units.

Online 31 mars 2003

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