Acta Crystallographica Section E

Structure Reports Online

Volume 59, Part 7 (July 2003)

inorganic compounds

 

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.

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