SrLaMnO3 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. La(1) is bonded in a 7-coordinate geometry to one O(2), two equivalent O(3), and four equivalent O(1) atoms. Mn(1) is bonded in a square co-planar geometry to one O(1), one O(2), and two equivalent O(3) atoms. 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 Mn(1) atom to form OSrLa4Mn octahedra that share  a cornercorner with one O(2)Sr4LaMn octahedra, corners with four equivalent O(1)SrLa4Mn octahedra, corners with six equivalent O(3)Sr2La2Mn2 octahedra, edges with four equivalent O(2)Sr4LaMn octahedra, edges with four equivalent O(1)SrLa4Mn octahedra, and faces with two equivalent O(3)Sr2La2Mn2 octahedra. The corner-sharing octahedral tilt angles range from 3-58°. In the second O site, O(2) is bonded to four equivalent Sr(1), one La(1), and one Mn(1) atom to form distorted OSr4LaMn octahedra that share  a cornercorner with one O(1)SrLa4Mn octahedra, corners with four equivalent O(2)Sr4LaMn octahedra, corners with six equivalent O(3)Sr2La2Mn2 octahedra, edges with four equivalent O(2)Sr4LaMn octahedra, edges with four equivalent O(1)SrLa4Mn octahedra, and faces with two equivalent O(3)Sr2La2Mn2 octahedra. The corner-sharing octahedral tilt angles range from 3-57°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent La(1), and two equivalent Mn(1) atoms to form distorted OSr2La2Mn2 octahedra that share corners with two equivalent O(3)Sr2La2Mn2 octahedra, corners with six equivalent O(2)Sr4LaMn octahedra, corners with six equivalent O(1)SrLa4Mn octahedra, edges with two equivalent O(3)Sr2La2Mn2 octahedra, faces with two equivalent O(2)Sr4LaMn octahedra, and faces with two equivalent O(1)SrLa4Mn octahedra. The corner-sharing octahedral tilt angles range from 9-58°.
SrLaMnO3 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. The Sr(1)-O(1) bond length is 2.46 Å. There is one shorter (2.71 Å) and one longer (2.74 Å) Sr(1)-O(3) bond length. There are two shorter (2.68 Å) and two longer (2.72 Å) Sr(1)-O(2) bond lengths. La(1) is bonded in a 7-coordinate geometry to one O(2), two equivalent O(3), and four equivalent O(1) atoms. The La(1)-O(2) bond length is 2.36 Å. There is one shorter (2.57 Å) and one longer (2.60 Å) La(1)-O(3) bond length. There are two shorter (2.64 Å) and two longer (2.74 Å) La(1)-O(1) bond lengths. Mn(1) is bonded in a square co-planar geometry to one O(1), one O(2), and two equivalent O(3) atoms. The Mn(1)-O(1) bond length is 2.32 Å. The Mn(1)-O(2) bond length is 2.28 Å. Both Mn(1)-O(3) bond lengths are 1.99 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 Mn(1) atom to form OSrLa4Mn octahedra that share  a cornercorner with one O(2)Sr4LaMn octahedra, corners with four equivalent O(1)SrLa4Mn octahedra, corners with six equivalent O(3)Sr2La2Mn2 octahedra, edges with four equivalent O(2)Sr4LaMn octahedra, edges with four equivalent O(1)SrLa4Mn octahedra, and faces with two equivalent O(3)Sr2La2Mn2 octahedra. The corner-sharing octahedral tilt angles range from 3-58°. In the second O site, O(2) is bonded to four equivalent Sr(1), one La(1), and one Mn(1) atom to form distorted OSr4LaMn octahedra that share  a cornercorner with one O(1)SrLa4Mn octahedra, corners with four equivalent O(2)Sr4LaMn octahedra, corners with six equivalent O(3)Sr2La2Mn2 octahedra, edges with four equivalent O(2)Sr4LaMn octahedra, edges with four equivalent O(1)SrLa4Mn octahedra, and faces with two equivalent O(3)Sr2La2Mn2 octahedra. The corner-sharing octahedral tilt angles range from 3-57°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent La(1), and two equivalent Mn(1) atoms to form distorted OSr2La2Mn2 octahedra that share corners with two equivalent O(3)Sr2La2Mn2 octahedra, corners with six equivalent O(2)Sr4LaMn octahedra, corners with six equivalent O(1)SrLa4Mn octahedra, edges with two equivalent O(3)Sr2La2Mn2 octahedra, faces with two equivalent O(2)Sr4LaMn octahedra, and faces with two equivalent O(1)SrLa4Mn octahedra. The corner-sharing octahedral tilt angles range from 9-58°.