MgSc2Cr2O8 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. There are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing ScO6 octahedra. In the second Sc site, Sc(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form edge-sharing ScO6 octahedra. Cr(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sc(1), one Sc(2), and one Cr(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Sc(1), and one Cr(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Sc(2) and one Cr(1) atom.
MgSc2Cr2O8 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Both Mg(1)-O(2) bond lengths are 2.47 Å. All Mg(1)-O(1) bond lengths are 2.10 Å. There are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing ScO6 octahedra. Both Sc(1)-O(2) bond lengths are 2.08 Å. All Sc(1)-O(1) bond lengths are 2.17 Å. In the second Sc site, Sc(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form edge-sharing ScO6 octahedra. Both Sc(2)-O(3) bond lengths are 2.06 Å. All Sc(2)-O(1) bond lengths are 2.20 Å. Cr(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. The Cr(1)-O(2) bond length is 1.75 Å. The Cr(1)-O(3) bond length is 1.70 Å. Both Cr(1)-O(1) bond lengths are 1.94 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sc(1), one Sc(2), and one Cr(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Sc(1), and one Cr(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Sc(2) and one Cr(1) atom.