Ba2AuO4 is Ilmenite-like structured and crystallizes in the tetragonal I4_1/a space group. Ba(1) is bonded to six equivalent O(1) atoms to form BaO6 octahedra that share corners with six equivalent Au(1)O4 trigonal pyramids and edges with six equivalent Ba(1)O6 octahedra. Au(1) is bonded to four equivalent O(1) atoms to form distorted AuO4 trigonal pyramids that share corners with twelve equivalent Ba(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-75°. O(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ba(1) and one Au(1) atom.
Ba2AuO4 is Ilmenite-like structured and crystallizes in the tetragonal I4_1/a space group. Ba(1) is bonded to six equivalent O(1) atoms to form BaO6 octahedra that share corners with six equivalent Au(1)O4 trigonal pyramids and edges with six equivalent Ba(1)O6 octahedra. There are a spread of Ba(1)-O(1) bond distances ranging from 2.67-2.77 Å. Au(1) is bonded to four equivalent O(1) atoms to form distorted AuO4 trigonal pyramids that share corners with twelve equivalent Ba(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-75°. All Au(1)-O(1) bond lengths are 2.08 Å. O(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ba(1) and one Au(1) atom.