Sr2La2MnCuO8 is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal P4/mmm space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(4) atoms. La(1) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(1) and four equivalent O(4) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedra are not tilted. Cu(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sr(1), one La(1), and one Mn(1) atom to form distorted OSr4LaMn octahedra that share corners with four equivalent O(3)La4Cu2 octahedra, corners with five equivalent O(1)Sr4LaMn octahedra, corners with eight equivalent O(4)Sr4Mn2 octahedra, edges with four equivalent O(1)Sr4LaMn octahedra, edges with four equivalent O(2)SrLa4Cu octahedra, and faces with four equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-50°. In the second O site, O(2) is bonded to one Sr(1), four equivalent La(1), and one Cu(1) atom to form distorted OSrLa4Cu octahedra that share corners with four equivalent O(4)Sr4Mn2 octahedra, corners with five equivalent O(2)SrLa4Cu octahedra, corners with eight equivalent O(3)La4Cu2 octahedra, edges with four equivalent O(1)Sr4LaMn octahedra, edges with four equivalent O(2)SrLa4Cu octahedra, and faces with four equivalent O(3)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the third O site, O(3) is bonded to four equivalent La(1) and two equivalent Cu(1) atoms to form distorted OLa4Cu2 octahedra that share corners with two equivalent O(3)La4Cu2 octahedra, corners with four equivalent O(1)Sr4LaMn octahedra, corners with eight equivalent O(2)SrLa4Cu octahedra, edges with two equivalent O(3)La4Cu2 octahedra, faces with four equivalent O(3)La4Cu2 octahedra, and faces with four equivalent O(2)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the fourth O site, O(4) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(4)Sr4Mn2 octahedra, corners with four equivalent O(2)SrLa4Cu octahedra, corners with eight equivalent O(1)Sr4LaMn octahedra, edges with two equivalent O(4)Sr4Mn2 octahedra, faces with four equivalent O(1)Sr4LaMn octahedra, and faces with four equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-50°.
Sr2La2MnCuO8 is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal P4/mmm space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(4) atoms. The Sr(1)-O(2) bond length is 2.54 Å. All Sr(1)-O(1) bond lengths are 2.78 Å. All Sr(1)-O(4) bond lengths are 2.67 Å. La(1) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(3) atoms. The La(1)-O(1) bond length is 2.24 Å. All La(1)-O(2) bond lengths are 2.74 Å. All La(1)-O(3) bond lengths are 2.64 Å. Mn(1) is bonded to two equivalent O(1) and four equivalent O(4) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedra are not tilted. Both Mn(1)-O(1) bond lengths are 2.39 Å. All Mn(1)-O(4) bond lengths are 1.93 Å. Cu(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedra are not tilted. Both Cu(1)-O(2) bond lengths are 2.05 Å. All Cu(1)-O(3) bond lengths are 1.93 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sr(1), one La(1), and one Mn(1) atom to form distorted OSr4LaMn octahedra that share corners with four equivalent O(3)La4Cu2 octahedra, corners with five equivalent O(1)Sr4LaMn octahedra, corners with eight equivalent O(4)Sr4Mn2 octahedra, edges with four equivalent O(1)Sr4LaMn octahedra, edges with four equivalent O(2)SrLa4Cu octahedra, and faces with four equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-50°. In the second O site, O(2) is bonded to one Sr(1), four equivalent La(1), and one Cu(1) atom to form distorted OSrLa4Cu octahedra that share corners with four equivalent O(4)Sr4Mn2 octahedra, corners with five equivalent O(2)SrLa4Cu octahedra, corners with eight equivalent O(3)La4Cu2 octahedra, edges with four equivalent O(1)Sr4LaMn octahedra, edges with four equivalent O(2)SrLa4Cu octahedra, and faces with four equivalent O(3)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the third O site, O(3) is bonded to four equivalent La(1) and two equivalent Cu(1) atoms to form distorted OLa4Cu2 octahedra that share corners with two equivalent O(3)La4Cu2 octahedra, corners with four equivalent O(1)Sr4LaMn octahedra, corners with eight equivalent O(2)SrLa4Cu octahedra, edges with two equivalent O(3)La4Cu2 octahedra, faces with four equivalent O(3)La4Cu2 octahedra, and faces with four equivalent O(2)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the fourth O site, O(4) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(4)Sr4Mn2 octahedra, corners with four equivalent O(2)SrLa4Cu octahedra, corners with eight equivalent O(1)Sr4LaMn octahedra, edges with two equivalent O(4)Sr4Mn2 octahedra, faces with four equivalent O(1)Sr4LaMn octahedra, and faces with four equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-50°.