Na3Ga3Te2O12: Synthesis, single crystal structure and characterization

Colorless, polyhedral single crystals of Na3Ga3Te2O12 have been synthesized for the first time by supercritical hydrothermal techniques using NaOH, Ga2O3, TlNO3 and TeO2 as reagents. Na3Ga3Te2O12 was characterized by single-crystal and powder X-ray diffractions, IR, Raman, UV–vis diffuse reflectance spectroscopies and thermogravimetric analysis. Na3Te2Ga3O12 crystallizes in the cubic space group Ia-3d (No. 230) with a = 12.3604(14) Å, V = 1888.4(4) Å3, and Z = 8. Na3Ga3Te2O12 exhibits a garnet structure-type with the Te6+ and Ga3+ cations occupying the octahedral and tetrahedral sites, respectively.

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