Acta Cryst. (2005). E61, i108-i110  [ doi:10.1107/S160053680501408X ]

NiZn₂(PO₄)₂·4H₂O, a nickel-doped modification of hopeite

W.-Y. Wu, X.-Q. Liang and Y.-Z. Li

Abstract: Green crystals of the title compound, nickel dizinc phosphate tetrahydrate, have been prepared hydrothermally. The compound is isostructural with hopeite, Zn₃(PO₄)₂·4H₂O, with nickel completely substituted for zinc at the octahedral site, resulting in [ZnPO₄]^- layers bridged by cis Ni(H₂O)₄O₂ octahedra. O-HO hydrogen bonds help to stabilize the structure. The Ni atom and two water O atoms occupy special positions with mirror symmetry.

Online 21 May 2005

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