Acta Crystallographica Section E

Structure Reports Online

Volume 59, Part 11 (November 2003)

inorganic compounds


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Acta Cryst. (2003). E59, i139-i141    [ doi:10.1107/S1600536803021287 ]

CaK2P2O7

M. Sandström, A. Fischer and D. Boström

Abstract: Crystals of the title compound, calcium dipotassium diphosphate, have been synthesized from a melt and structurally characterized using single-crystal X-ray diffraction. The CaK2P2O7 structure can be described as a layer structure, with alternating [K2P2O72-][infinity] and [Ca2+][infinity] layers parallel to the ab plane. Ca2+ is coordinated by six O atoms in a distorted octahedron. K+ is coordinated by nine O atoms in two different polyhedra.

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