Acta Cryst. (2006). E62, i184-i186  [ doi:10.1107/S1600536806029953 ]

Mg and Zn disorder in Mg_1.59(1)Zn_1.41(1)Sb₂

S.-Q. Xia, P. King and S. Bobev

Abstract: Single crystals of magnesium zinc diantimony, Mg_1.59 (1)Zn_1.41 (1)Sb₂, were grown by a reaction of elemental Mg, Zn and Sb in an excess of Zn acting as a flux. The compound crystallizes with the trigonal anti-La₂O₃ type (Pearson code hP5). The structure can be regarded as a substitutional derivative of -Mg₃Sb₂ by replacing some of the Mg atoms in the tetrahedral postion (site symmetry 3m.) with Zn atoms. The other two atoms in the asymmetric unit also occupy special positions, viz. Mg (m.) and Sb (3m.).

Online 4 August 2006

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