γ‐Sodium gallate: a Rietveld refinement using X‐ray powder diffraction

Tetrahedrally coordinated oxides usually present polymorphism, but for NaGaO₂, only the β polymorph has been reported. In this work, the synthesis and structural characterization of γ‐sodium gallate, γ‐NaGaO₂, are presented. The crystal structure belongs to the orthorhombic system, space group Pbca (No. 61), and has been characterized by a Rietveld refinement of the X‐ray powder diffraction pattern. The structure is similar to those exhibited by the γ phases of many tetrahedral oxides.