Ba₄GaN₃O

Red transparant platelet-shaped single crystals of tetra­barium gallium trinitride oxide, Ba₄GaN₃O, were synthesized by the Na flux method. The crystal structure is isotypic with Sr₄GaN₃O, containing isolated triangular [GaN₃]^6- anionic groups. O^2- atoms are inserted between the slabs of [Ba₄GaN₃]²⁺, in which the [GaN₃]^6- groups are surrounded by Ba²⁺ atoms.