Acta Cryst. (2008). E64, i26  [ doi:10.1107/S1600536808011252 ]

Zn₂(TeO₃)Br₂

D. Zhang and M. Johnsson

Abstract: Single crystals of dizinc tellurium dibromide trioxide, Zn₂(TeO₃)Br₂, were synthesized via a transport reaction in sealed evacuated silica tubes. The compound has a layered crystal structure in which the building units are [ZnO₄Br] distorted square pyramids, [ZnO₂Br₂] distorted tetrahedra, and [TeO₃E] tetrahedra (E being the 5s² lone pair of Te⁴⁺) joined through sharing of edges and corners to form layers of no net charge. Bromine atoms and tellurium lone pairs protrude from the surfaces of each layer towards adjacent layers. This new compound Zn₂(TeO₃)Br₂ is isostructural with the synthetic compounds Zn₂(TeO₃)Cl₂, CuZn(TeO₃)₂, Co₂(TeO₃)Br₂ and the mineral sophiite, Zn₂(SeO₃)Cl₂.

Online 26 April 2008

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