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Acta Cryst. (2001). E57, i49-i51  [ doi:10.1107/S1600536801008959 ]

BING-2: a layered tin-oxalate potassium fluoride, KSn(C2O4)F

T. O. Salami, P. Y. Zavalij and S. R. J. Oliver

Abstract: The title compound, KSn(C2O4)F, is a two-dimensional material related to our previously reported three-dimensional framework, Na4Sn4(C2O4)3F6. Both are alkali-metal tin-oxalate materials, but here the compound is layered and has potassium in place of sodium. The material was synthesized solvothermally at 423 K and crystallized in the monoclinic space group P21/c. The structure consists of potassium fluoride layers in the bc plane, which are sandwiched on both sides by tin-oxalate chains that extend along the c axis.

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