Acta Cryst. (2006). E62, i193-i195  [ doi:10.1107/S1600536806033265 ]

K₂Bi(PO₄)(WO₄) with a layered anionic substructure

I. V. Zatovsky, K. V. Terebilenko, N. S. Slobodyanik, V. N. Baumer and O. V. Shishkin

Abstract: Dipotassium bismuth phosphate tungstate has been synthesized using the flux technique. It crystallizes in the space group Ibca and is isotypic with Na₂Y(PO₄)(MoO₄). It exhibits a layered structure, which is built up from [Bi(PO₄)(WO₄)]^2- layers. Each layer is composed of [BiO₈] zigzag chains, which are connected via PO₄ and WO₄ tetrahedra. The parallel anionic [Bi(PO₄)(WO₄)]^2- layers are stacked along [100] and are held together by K⁺ counter-cations which occupy sites in the interlayer space. Bi, W and P atoms are all located on twofold axes.

Online 25 August 2006

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