SrLaScO4 is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal I4mm space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(3) atoms. La(1) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(3) atoms. Sc(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form corner-sharing ScO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), four equivalent La(1), and one Sc(1) atom to form distorted OSrLa4Sc octahedra that share  a cornercorner with one O(2)Sr4LaSc octahedra, corners with four equivalent O(1)SrLa4Sc octahedra, corners with twelve equivalent O(3)Sr2La2Sc2 octahedra, edges with four equivalent O(2)Sr4LaSc octahedra, edges with four equivalent O(1)SrLa4Sc octahedra, and faces with four equivalent O(3)Sr2La2Sc2 octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the second O site, O(2) is bonded to four equivalent Sr(1), one La(1), and one Sc(1) atom to form distorted OSr4LaSc octahedra that share  a cornercorner with one O(1)SrLa4Sc octahedra, corners with four equivalent O(2)Sr4LaSc octahedra, corners with twelve equivalent O(3)Sr2La2Sc2 octahedra, edges with four equivalent O(2)Sr4LaSc octahedra, edges with four equivalent O(1)SrLa4Sc octahedra, and faces with four equivalent O(3)Sr2La2Sc2 octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent La(1), and two equivalent Sc(1) atoms to form distorted OSr2La2Sc2 octahedra that share corners with two equivalent O(3)Sr2La2Sc2 octahedra, corners with six equivalent O(2)Sr4LaSc octahedra, corners with six equivalent O(1)SrLa4Sc octahedra, edges with two equivalent O(3)Sr2La2Sc2 octahedra, faces with two equivalent O(2)Sr4LaSc octahedra, faces with two equivalent O(1)SrLa4Sc octahedra, and faces with four equivalent O(3)Sr2La2Sc2 octahedra. The corner-sharing octahedral tilt angles range from 7-52°.
SrLaScO4 is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal I4mm space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(3) atoms. The Sr(1)-O(1) bond length is 2.36 Å. All Sr(1)-O(2) bond lengths are 2.91 Å. All Sr(1)-O(3) bond lengths are 2.78 Å. La(1) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(3) atoms. The La(1)-O(2) bond length is 2.29 Å. All La(1)-O(1) bond lengths are 2.90 Å. All La(1)-O(3) bond lengths are 2.65 Å. Sc(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form corner-sharing ScO6 octahedra. The corner-sharing octahedral tilt angles are 7°. The Sc(1)-O(1) bond length is 2.17 Å. The Sc(1)-O(2) bond length is 2.19 Å. All Sc(1)-O(3) bond lengths are 2.04 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), four equivalent La(1), and one Sc(1) atom to form distorted OSrLa4Sc octahedra that share  a cornercorner with one O(2)Sr4LaSc octahedra, corners with four equivalent O(1)SrLa4Sc octahedra, corners with twelve equivalent O(3)Sr2La2Sc2 octahedra, edges with four equivalent O(2)Sr4LaSc octahedra, edges with four equivalent O(1)SrLa4Sc octahedra, and faces with four equivalent O(3)Sr2La2Sc2 octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the second O site, O(2) is bonded to four equivalent Sr(1), one La(1), and one Sc(1) atom to form distorted OSr4LaSc octahedra that share  a cornercorner with one O(1)SrLa4Sc octahedra, corners with four equivalent O(2)Sr4LaSc octahedra, corners with twelve equivalent O(3)Sr2La2Sc2 octahedra, edges with four equivalent O(2)Sr4LaSc octahedra, edges with four equivalent O(1)SrLa4Sc octahedra, and faces with four equivalent O(3)Sr2La2Sc2 octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent La(1), and two equivalent Sc(1) atoms to form distorted OSr2La2Sc2 octahedra that share corners with two equivalent O(3)Sr2La2Sc2 octahedra, corners with six equivalent O(2)Sr4LaSc octahedra, corners with six equivalent O(1)SrLa4Sc octahedra, edges with two equivalent O(3)Sr2La2Sc2 octahedra, faces with two equivalent O(2)Sr4LaSc octahedra, faces with two equivalent O(1)SrLa4Sc octahedra, and faces with four equivalent O(3)Sr2La2Sc2 octahedra. The corner-sharing octahedral tilt angles range from 7-52°.