Sr5Mn(Fe2O5)2 crystallizes in the orthorhombic Cmmm space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(8) atoms. In the second Sr site, Sr(2) is bonded in a body-centered cubic geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. In the third Sr site, Sr(3) is bonded in a body-centered cubic geometry to two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. In the second Mn site, Mn(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a square co-planar geometry to one O(3), one O(5), and two equivalent O(7) atoms. In the second Fe site, Fe(2) is bonded in a square co-planar geometry to one O(1), one O(6), and two equivalent O(8) atoms. In the third Fe site, Fe(3) is bonded in a square co-planar geometry to one O(4), one O(6), and two equivalent O(7) atoms. In the fourth Fe site, Fe(4) is bonded in a square co-planar geometry to one O(1), one O(5), and two equivalent O(8) atoms. There are eight inequivalent O sites. In the first O site, O(8) is bonded to two equivalent Sr(1), two equivalent Sr(3), one Fe(2), and one Fe(4) atom to form a mixture of edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the second O site, O(1) is bonded to four equivalent Sr(1), one Fe(2), and one Fe(4) atom to form a mixture of edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the third O site, O(2) is bonded to four equivalent Sr(2), one Mn(1), and one Mn(2) atom to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(2)Sr4Mn2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(3)Sr4MnFe octahedra, corners with four equivalent O(4)Sr4MnFe octahedra, edges with two equivalent O(7)Sr4Fe2 octahedra, edges with two equivalent O(2)Sr4Mn2 octahedra, faces with two equivalent O(3)Sr4MnFe octahedra, and faces with two equivalent O(4)Sr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 0-67°. In the fourth O site, O(3) is bonded to four equivalent Sr(2), one Mn(1), and one Fe(1) atom to form OSr4MnFe octahedra that share  a cornercorner with one O(5)Sr4Fe2 octahedra,  a cornercorner with one O(3)Sr4MnFe octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(2)Sr4Mn2 octahedra, corners with four equivalent O(4)Sr4MnFe octahedra, edges with two equivalent O(3)Sr4MnFe octahedra, edges with two equivalent O(4)Sr4MnFe octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(2)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-67°. In the fifth O site, O(4) is bonded to four equivalent Sr(2), one Mn(2), and one Fe(3) atom to form OSr4MnFe octahedra that share  a cornercorner with one O(6)Sr4Fe2 octahedra,  a cornercorner with one O(4)Sr4MnFe octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(2)Sr4Mn2 octahedra, corners with four equivalent O(3)Sr4MnFe octahedra, edges with two equivalent O(3)Sr4MnFe octahedra, edges with two equivalent O(4)Sr4MnFe octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(2)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-66°. In the sixth O site, O(5) is bonded to four equivalent Sr(3), one Fe(1), and one Fe(4) atom to form OSr4Fe2 octahedra that share  a cornercorner with one O(1)Sr4Fe2 octahedra,  a cornercorner with one O(3)Sr4MnFe octahedra, corners with four equivalent O(6)Sr4Fe2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4Fe2 octahedra, edges with two equivalent O(5)Sr4Fe2 octahedra, edges with two equivalent O(6)Sr4Fe2 octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(8)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the seventh O site, O(6) is bonded to four equivalent Sr(3), one Fe(2), and one Fe(3) atom to form OSr4Fe2 octahedra that share  a cornercorner with one O(1)Sr4Fe2 octahedra,  a cornercorner with one O(4)Sr4MnFe octahedra, corners with four equivalent O(5)Sr4Fe2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4Fe2 octahedra, edges with two equivalent O(5)Sr4Fe2 octahedra, edges with two equivalent O(6)Sr4Fe2 octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(8)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the eighth O site, O(7) is bonded to two equivalent Sr(2), two equivalent Sr(3), one Fe(1), and one Fe(3) atom to form OSr4Fe2 octahedra that share corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4Fe2 octahedra, corners with two equivalent O(7)Sr4Fe2 octahedra, corners with two equivalent O(8)Sr4Fe2 octahedra, corners with two equivalent O(2)Sr4Mn2 octahedra, corners with two equivalent O(3)Sr4MnFe octahedra, corners with two equivalent O(4)Sr4MnFe octahedra,  an edgeedge with one O(8)Sr4Fe2 octahedra,  an edgeedge with one O(2)Sr4Mn2 octahedra, edges with two equivalent O(7)Sr4Fe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(6)Sr4Fe2 octahedra,  a faceface with one O(3)Sr4MnFe octahedra, and  a faceface with one O(4)Sr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 0-66°.
Sr5Mn(Fe2O5)2 crystallizes in the orthorhombic Cmmm space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(8) atoms. All Sr(1)-O(1) bond lengths are 2.68 Å. All Sr(1)-O(8) bond lengths are 2.67 Å. In the second Sr site, Sr(2) is bonded in a body-centered cubic geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. Both Sr(2)-O(2) bond lengths are 2.67 Å. Both Sr(2)-O(3) bond lengths are 2.68 Å. Both Sr(2)-O(4) bond lengths are 2.68 Å. Both Sr(2)-O(7) bond lengths are 2.69 Å. In the third Sr site, Sr(3) is bonded in a body-centered cubic geometry to two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. Both Sr(3)-O(5) bond lengths are 2.67 Å. Both Sr(3)-O(6) bond lengths are 2.68 Å. Both Sr(3)-O(7) bond lengths are 2.67 Å. Both Sr(3)-O(8) bond lengths are 2.67 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Mn(1)-O(2) bond lengths are 1.92 Å. Both Mn(1)-O(3) bond lengths are 1.99 Å. In the second Mn site, Mn(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. Both Mn(2)-O(2) bond lengths are 2.14 Å. Both Mn(2)-O(4) bond lengths are 2.07 Å. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a square co-planar geometry to one O(3), one O(5), and two equivalent O(7) atoms. The Fe(1)-O(3) bond length is 2.07 Å. The Fe(1)-O(5) bond length is 2.04 Å. Both Fe(1)-O(7) bond lengths are 2.01 Å. In the second Fe site, Fe(2) is bonded in a square co-planar geometry to one O(1), one O(6), and two equivalent O(8) atoms. The Fe(2)-O(1) bond length is 2.02 Å. The Fe(2)-O(6) bond length is 2.03 Å. Both Fe(2)-O(8) bond lengths are 2.03 Å. In the third Fe site, Fe(3) is bonded in a square co-planar geometry to one O(4), one O(6), and two equivalent O(7) atoms. The Fe(3)-O(4) bond length is 2.00 Å. The Fe(3)-O(6) bond length is 2.01 Å. Both Fe(3)-O(7) bond lengths are 2.06 Å. In the fourth Fe site, Fe(4) is bonded in a square co-planar geometry to one O(1), one O(5), and two equivalent O(8) atoms. The Fe(4)-O(1) bond length is 2.02 Å. The Fe(4)-O(5) bond length is 2.02 Å. Both Fe(4)-O(8) bond lengths are 2.03 Å. There are eight inequivalent O sites. In the first O site, O(8) is bonded to two equivalent Sr(1), two equivalent Sr(3), one Fe(2), and one Fe(4) atom to form a mixture of edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the second O site, O(1) is bonded to four equivalent Sr(1), one Fe(2), and one Fe(4) atom to form a mixture of edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the third O site, O(2) is bonded to four equivalent Sr(2), one Mn(1), and one Mn(2) atom to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(2)Sr4Mn2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(3)Sr4MnFe octahedra, corners with four equivalent O(4)Sr4MnFe octahedra, edges with two equivalent O(7)Sr4Fe2 octahedra, edges with two equivalent O(2)Sr4Mn2 octahedra, faces with two equivalent O(3)Sr4MnFe octahedra, and faces with two equivalent O(4)Sr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 0-67°. In the fourth O site, O(3) is bonded to four equivalent Sr(2), one Mn(1), and one Fe(1) atom to form OSr4MnFe octahedra that share  a cornercorner with one O(5)Sr4Fe2 octahedra,  a cornercorner with one O(3)Sr4MnFe octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(2)Sr4Mn2 octahedra, corners with four equivalent O(4)Sr4MnFe octahedra, edges with two equivalent O(3)Sr4MnFe octahedra, edges with two equivalent O(4)Sr4MnFe octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(2)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-67°. In the fifth O site, O(4) is bonded to four equivalent Sr(2), one Mn(2), and one Fe(3) atom to form OSr4MnFe octahedra that share  a cornercorner with one O(6)Sr4Fe2 octahedra,  a cornercorner with one O(4)Sr4MnFe octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(2)Sr4Mn2 octahedra, corners with four equivalent O(3)Sr4MnFe octahedra, edges with two equivalent O(3)Sr4MnFe octahedra, edges with two equivalent O(4)Sr4MnFe octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(2)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-66°. In the sixth O site, O(5) is bonded to four equivalent Sr(3), one Fe(1), and one Fe(4) atom to form OSr4Fe2 octahedra that share  a cornercorner with one O(1)Sr4Fe2 octahedra,  a cornercorner with one O(3)Sr4MnFe octahedra, corners with four equivalent O(6)Sr4Fe2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4Fe2 octahedra, edges with two equivalent O(5)Sr4Fe2 octahedra, edges with two equivalent O(6)Sr4Fe2 octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(8)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the seventh O site, O(6) is bonded to four equivalent Sr(3), one Fe(2), and one Fe(3) atom to form OSr4Fe2 octahedra that share  a cornercorner with one O(1)Sr4Fe2 octahedra,  a cornercorner with one O(4)Sr4MnFe octahedra, corners with four equivalent O(5)Sr4Fe2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4Fe2 octahedra, edges with two equivalent O(5)Sr4Fe2 octahedra, edges with two equivalent O(6)Sr4Fe2 octahedra, faces with two equivalent O(7)Sr4Fe2 octahedra, and faces with two equivalent O(8)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the eighth O site, O(7) is bonded to two equivalent Sr(2), two equivalent Sr(3), one Fe(1), and one Fe(3) atom to form OSr4Fe2 octahedra that share corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4Fe2 octahedra, corners with two equivalent O(7)Sr4Fe2 octahedra, corners with two equivalent O(8)Sr4Fe2 octahedra, corners with two equivalent O(2)Sr4Mn2 octahedra, corners with two equivalent O(3)Sr4MnFe octahedra, corners with two equivalent O(4)Sr4MnFe octahedra,  an edgeedge with one O(8)Sr4Fe2 octahedra,  an edgeedge with one O(2)Sr4Mn2 octahedra, edges with two equivalent O(7)Sr4Fe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(6)Sr4Fe2 octahedra,  a faceface with one O(3)Sr4MnFe octahedra, and  a faceface with one O(4)Sr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 0-66°.