Cs3ScO3 crystallizes in the monoclinic C2/m space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. In the second Cs site, Cs(2) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. In the third Cs site, Cs(3) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. Sc(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form edge-sharing ScO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Cs(1) and two equivalent Sc(1) atoms. In the second O site, O(2) is bonded in a 7-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), two equivalent Cs(3), and one Sc(1) atom.
Cs3ScO3 crystallizes in the monoclinic C2/m space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. The Cs(1)-O(1) bond length is 2.85 Å. There are two shorter (3.15 Å) and two longer (3.23 Å) Cs(1)-O(2) bond lengths. In the second Cs site, Cs(2) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two shorter (2.95 Å) and two longer (3.24 Å) Cs(2)-O(2) bond lengths. In the third Cs site, Cs(3) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two shorter (3.10 Å) and two longer (3.16 Å) Cs(3)-O(2) bond lengths. Sc(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form edge-sharing ScO4 tetrahedra. There is one shorter (2.04 Å) and one longer (2.05 Å) Sc(1)-O(1) bond length. Both Sc(1)-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 3-coordinate geometry to one Cs(1) and two equivalent Sc(1) atoms. In the second O site, O(2) is bonded in a 7-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), two equivalent Cs(3), and one Sc(1) atom.