Acta Cryst. (2008). E64, i48  [ doi:10.1107/S1600536808021995 ]

A new polymorph of Lu(PO₃)₃

A. Bejaoui, K. Horchani-Naifer and M. Férid

Abstract: A new polymorph of lutetium polyphosphate, Lu(PO₃)₃, was found to be isotypic with the trigonal form of Yb(PO₃)₃. Two of the three Lu atoms occupy special positions (Wyckoff positions 3a and 3b, site symmetry ). The atomic arrangement consists of infinite helical polyphosphate chains running along the c axis, with a repeat period of 12 PO₄ tetrahedra, joined with LuO₆ octahedra.

Online 19 July 2008

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