CoSbO4 is trigonal omega-derived structured and crystallizes in the tetragonal I-4m2 space group. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share corners with four equivalent Co(1)O6 octahedra and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 20°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted SbO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra and edges with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 25°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to two equivalent Co(1) and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Co(1) and two equivalent Sb(1) atoms.
CoSbO4 is trigonal omega-derived structured and crystallizes in the tetragonal I-4m2 space group. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share corners with four equivalent Co(1)O6 octahedra and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 20°. Both Co(1)-O(2) bond lengths are 1.89 Å. All Co(1)-O(1) bond lengths are 1.99 Å. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted SbO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra and edges with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 25°. Both Sb(1)-O(1) bond lengths are 1.98 Å. All Sb(1)-O(2) bond lengths are 2.00 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to two equivalent Co(1) and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Co(1) and two equivalent Sb(1) atoms.