Acta Cryst. (2009). E65, i85  [ doi:10.1107/S1600536809045632 ]

Copper(II) hydrogenphosphate, CuHPO₄

C. Günther, H. Görls and D. Stachel

Abstract: The title compound, CuHPO₄, has been synthesized from a mixture of phosphoric acid and copper oxide. It has the same composition as MHPO₄ (M = Ca, Ba, Pb, Sr or Sn), but adopts a rhombohedral structure with all atoms on general positions. The structure features distorted PO₄ tetrahedra linked by copper, forming 12-membered rings. The Cu^II atom is coordinated by five O atoms in a distorted square-pyramidal manner. O-HO hydrogen bonding leads to an additional stabilization of the structure.

Online 7 November 2009

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