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Acta Cryst. (2008). E64, i75 [ doi:10.1107/S160053680803287X ]
Abstract: A new compound, dipotassium holmium(III) phosphate(V) tungstate(VI), K2Ho(PO4)(WO4), has been obtained during investigation of the K2O-P2O5-WO3-HoF3 phase system using the flux technique. The compound is isotypic with K2Bi(PO4)(WO4). Its framework structure consists of flat
2[HoPO4] layers parallel to (100) that are made up of
1[HoO8] zigzag chains interlinked via slightly distorted PO4 tetrahedra. WO4 tetrahedra are attached above and below these layers, leaving space for the K+ counter-cations. The HoO8, PO4 and WO4 units exhibit 2 symmetry.
Online 18 October 2008
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