Acta Cryst. (2003). E59, i103-i104  [ doi:10.1107/S1600536803013242 ]

Ytterbium sesquiselenide Yb₂Se₃

A. Assoud and H. Kleinke

Abstract: Ytterbium selenide, Yb₂Se₃, was prepared by reacting the elements at 1173  K in an evacuated silica tube in an Sn flux. The ytterbium sesquiselenide crystallizes in the orthorhombic space group Fddd, adopting the Sc₂S₃ structure type. Its structure consists of edge-sharing (slightly distorted) YbSe₆ octahedra, and may be regarded as a defect NaCl structure.

Online 24 June 2003

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