BaAgO2 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 7-coordinate geometry to two equivalent O(2) and five equivalent O(1) atoms. Ag(1) is bonded in a square co-planar geometry to one O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to five equivalent Ba(1) and one Ag(1) atom to form distorted OBa5Ag octahedra that share corners with four equivalent O(1)Ba5Ag octahedra, corners with seven equivalent O(2)Ba2Ag3 trigonal bipyramids, edges with eight equivalent O(1)Ba5Ag octahedra, and faces with two equivalent O(2)Ba2Ag3 trigonal bipyramids. The corner-sharing octahedral tilt angles are 10°. In the second O site, O(2) is bonded to two equivalent Ba(1) and three equivalent Ag(1) atoms to form OBa2Ag3 trigonal bipyramids that share corners with seven equivalent O(1)Ba5Ag octahedra, corners with four equivalent O(2)Ba2Ag3 trigonal bipyramids, edges with two equivalent O(2)Ba2Ag3 trigonal bipyramids, and faces with two equivalent O(1)Ba5Ag octahedra. The corner-sharing octahedral tilt angles range from 0-58°.
BaAgO2 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 7-coordinate geometry to two equivalent O(2) and five equivalent O(1) atoms. Both Ba(1)-O(2) bond lengths are 2.73 Å. There is one shorter (2.63 Å) and four longer (2.91 Å) Ba(1)-O(1) bond lengths. Ag(1) is bonded in a square co-planar geometry to one O(1) and three equivalent O(2) atoms. The Ag(1)-O(1) bond length is 2.09 Å. There is one shorter (2.11 Å) and two longer (2.17 Å) Ag(1)-O(2) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded to five equivalent Ba(1) and one Ag(1) atom to form distorted OBa5Ag octahedra that share corners with four equivalent O(1)Ba5Ag octahedra, corners with seven equivalent O(2)Ba2Ag3 trigonal bipyramids, edges with eight equivalent O(1)Ba5Ag octahedra, and faces with two equivalent O(2)Ba2Ag3 trigonal bipyramids. The corner-sharing octahedral tilt angles are 10°. In the second O site, O(2) is bonded to two equivalent Ba(1) and three equivalent Ag(1) atoms to form OBa2Ag3 trigonal bipyramids that share corners with seven equivalent O(1)Ba5Ag octahedra, corners with four equivalent O(2)Ba2Ag3 trigonal bipyramids, edges with two equivalent O(2)Ba2Ag3 trigonal bipyramids, and faces with two equivalent O(1)Ba5Ag octahedra. The corner-sharing octahedral tilt angles range from 0-58°.