Acta Cryst. (2005). E61, i223-i224  [ doi:10.1107/S1600536805031168 ]

Reinvestigation of Na₃P based on single-crystal data

Y. Dong and F. J. DiSalvo

Abstract: The structure of trisodium phosphide, Na₃P, known from X-ray powder diffraction data, has been refined based on single-crystal data. The compound crystallizes in the hexagonal A₃B (A = alkali metal and B = group 15 element) structure type and is isotypic with the homologous potassium phase. The framework is built of Na⁺ and P^3- ions arranged in two kinds of layers perpendicular to the c axis. Two of the Na atoms and the P atom reside at positions of m2 (2b), 3m (4f) and m2 (2c) site symmetry, respectively.

Online 8 October 2005

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