ScO2 crystallizes in the orthorhombic Pnma space group. Sc(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing ScO6 octahedra. The corner-sharing octahedral tilt angles are 54°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sc(1) atoms. In the second O site, O(1) is bonded in a trigonal planar geometry to three equivalent Sc(1) atoms.
ScO2 crystallizes in the orthorhombic Pnma space group. Sc(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing ScO6 octahedra. The corner-sharing octahedral tilt angles are 54°. There is one shorter (2.02 Å) and two longer (2.03 Å) Sc(1)-O(1) bond lengths. There is one shorter (2.13 Å) and two longer (2.32 Å) Sc(1)-O(2) bond lengths. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sc(1) atoms. In the second O site, O(1) is bonded in a trigonal planar geometry to three equivalent Sc(1) atoms.