SbO2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(1) atoms. In the second Sb site, Sb(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles are 46°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Sb(2) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to two equivalent Sb(2) atoms.
SbO2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(1) atoms. There are two shorter (2.04 Å) and two longer (2.20 Å) Sb(1)-O(1) bond lengths. In the second Sb site, Sb(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles are 46°. Both Sb(2)-O(1) bond lengths are 2.02 Å. All Sb(2)-O(2) bond lengths are 1.97 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Sb(2) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to two equivalent Sb(2) atoms.