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Acta Cryst. (2007). E63, i202 [ doi:10.1107/S1600536807060011 ]
Abstract: The title compound, digallium(III) tris[tellurate(IV)] trihydrate, was obtained under hydrothermal conditions. It is isotypic with the analogous selenates(IV) of formula type MIII2(SeO3)3(H2O)3 (MIII = Al, Cr, Fe, Sc, Ga) and comprises isolated GaO6 and GaO3(H2O)3 octahedra as well as TeO3 trigonal pyramids as single building units. These polyhedra share corners and thereby establish a network structure. Additional hydrogen bonding between the water molecules and O atoms helps to stabilize this arrangement. Both crystallographically independent Ga atoms are located on threefold rotation axes. The crystal used was an inversion twin.
Online 28 November 2007
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