BaAuO2 crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. Au(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded to four equivalent Ba(1) and two equivalent Au(1) atoms to form a mixture of face, corner, and edge-sharing OBa4Au2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°.
BaAuO2 crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. All Ba(1)-O(1) bond lengths are 2.87 Å. Au(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Au(1)-O(1) bond lengths are 2.17 Å. O(1) is bonded to four equivalent Ba(1) and two equivalent Au(1) atoms to form a mixture of face, corner, and edge-sharing OBa4Au2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°.