Acta Cryst. (2004). E60, i97-i99  [ doi:10.1107/S160053680401551X ]

The Keggin-type potassium/hydronium 12-tungstophosphate, K_2.4(H₃O)_0.6PO₄W₁₂O₃₆

Y. Kang, M. Li, J. Zhao and S. Mao

Abstract: The crystal structure of a new potassium/hydronium tungstophosphate, potassium hydronium phosphate tungstate, K_2.4(H₃O)_0.6PO₄W₁₂O₃₆, obtained by hydrothermal synthesis at low pH, has been determined by single-crystal X-ray diffraction. Regular PO₄ tetrahedra are located on sites of 3m symmetry. 12 W atoms are in a shell around the phosphate anion and are surrounded by O atoms in a distorted octahedral coordination. The close packing of the heteropolyanionic units forms orthogonally intersecting channels where the statistically distributed potassium/hydronium ions are situated.

Online 17 July 2004

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