BaCoO2 crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded in a distorted body-centered cubic geometry to eight equivalent O(1) atoms. Co(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 Co(1) atoms to form a mixture of edge, face, and corner-sharing OBa4Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°.
BaCoO2 crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded in a distorted body-centered cubic geometry to eight equivalent O(1) atoms. All Ba(1)-O(1) bond lengths are 2.80 Å. Co(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Co(1)-O(1) bond lengths are 1.99 Å. O(1) is bonded to four equivalent Ba(1) and two equivalent Co(1) atoms to form a mixture of edge, face, and corner-sharing OBa4Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°.