La2Sc2O5 crystallizes in the orthorhombic Ima2 space group. La(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) 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 ScO6 octahedra that share corners with four equivalent Sc(1)O6 octahedra and corners with two equivalent Sc(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 28°. In the second Sc site, Sc(2) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form ScO4 trigonal pyramids that share corners with two equivalent Sc(1)O6 octahedra and corners with two equivalent Sc(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 29°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Sc(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent La(1), one Sc(1), and one Sc(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Sc(2) atoms.
La2Sc2O5 crystallizes in the orthorhombic Ima2 space group. La(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. The La(1)-O(3) bond length is 2.58 Å. There is one shorter (2.54 Å) and one longer (2.57 Å) La(1)-O(1) bond length. There is one shorter (2.37 Å) and one longer (2.73 Å) La(1)-O(2) bond length. 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 ScO6 octahedra that share corners with four equivalent Sc(1)O6 octahedra and corners with two equivalent Sc(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 28°. Both Sc(1)-O(2) bond lengths are 2.11 Å. There are two shorter (2.09 Å) and two longer (2.12 Å) Sc(1)-O(1) bond lengths. In the second Sc site, Sc(2) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form ScO4 trigonal pyramids that share corners with two equivalent Sc(1)O6 octahedra and corners with two equivalent Sc(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 29°. Both Sc(2)-O(2) bond lengths are 2.06 Å. There is one shorter (2.11 Å) and one longer (2.13 Å) Sc(2)-O(3) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Sc(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent La(1), one Sc(1), and one Sc(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Sc(2) atoms.