A new compound, dipotassium holmium(III) phosphate(V) tungstate(VI), K(2)Ho(PO(4))(WO(4)), has been obtained during investigation of the K(2)O-P(2)O(5)-WO(3)-HoF(3) phase system using the flux technique. The compound is isotypic with K(2)Bi(PO(4))(WO(4)). Its framework structure consists of flat (∞) (2)[HoPO(4)] layers parallel to (100) that are made up of (∞) (1)[HoO(8)] zigzag chains inter-linked via slightly distorted PO(4) tetra-hedra. WO(4) tetra-hedra are attached above and below these layers, leaving space for the K(+) counter-cations. The HoO(8), PO(4) and WO(4) units exhibit 2 symmetry.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2959528PMC
http://dx.doi.org/10.1107/S160053680803287XDOI Listing

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A new compound, dipotassium holmium(III) phosphate(V) tungstate(VI), K(2)Ho(PO(4))(WO(4)), has been obtained during investigation of the K(2)O-P(2)O(5)-WO(3)-HoF(3) phase system using the flux technique. The compound is isotypic with K(2)Bi(PO(4))(WO(4)). Its framework structure consists of flat (∞) (2)[HoPO(4)] layers parallel to (100) that are made up of (∞) (1)[HoO(8)] zigzag chains inter-linked via slightly distorted PO(4) tetra-hedra.

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