ScSeO3F crystallizes in the triclinic P-1 space group. Sc(1) is bonded to one O(1), two equivalent O(2), two equivalent O(3), and two equivalent F(1) atoms to form a mixture of distorted corner and edge-sharing ScO5F2 pentagonal bipyramids. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sc(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Sc(1) and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sc(1) and one Se(1) atom. F(1) is bonded in a linear geometry to two equivalent Sc(1) atoms.
ScSeO3F crystallizes in the triclinic P-1 space group. Sc(1) is bonded to one O(1), two equivalent O(2), two equivalent O(3), and two equivalent F(1) atoms to form a mixture of distorted corner and edge-sharing ScO5F2 pentagonal bipyramids. The Sc(1)-O(1) bond length is 2.16 Å. There is one shorter (2.15 Å) and one longer (2.29 Å) Sc(1)-O(2) bond length. There is one shorter (2.20 Å) and one longer (2.26 Å) Sc(1)-O(3) bond length. There is one shorter (2.06 Å) and one longer (2.07 Å) Sc(1)-F(1) bond length. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. The Se(1)-O(1) bond length is 1.70 Å. The Se(1)-O(2) bond length is 1.74 Å. The Se(1)-O(3) bond length is 1.76 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sc(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Sc(1) and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sc(1) and one Se(1) atom. F(1) is bonded in a linear geometry to two equivalent Sc(1) atoms.