Ga₂(TeO₃)₃(H₂O)₃

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.