Sr7CaMn3Fe5O24 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. There are five inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(13), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(11) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, corners with four equivalent Sr(5)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(1), one O(10), one O(14), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(12) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(4)O12 cuboctahedra, corners with four equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Sr(5)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. In the third Sr site, Sr(3) is bonded to one O(10), one O(14), two equivalent O(1), two equivalent O(12), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(5)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. In the fourth Sr site, Sr(4) is bonded to one O(13), one O(9), two equivalent O(11), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(5)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. In the fifth Sr site, Sr(5) is bonded to one O(10), one O(14), two equivalent O(12), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. Ca(1) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(11), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(4)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Mn site, Mn(2) is bonded to one O(13), one O(14), two equivalent O(4), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(9), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Fe site, Fe(2) is bonded to one O(10), one O(9), two equivalent O(2), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the third Fe site, Fe(3) is bonded to one O(1), one O(11), one O(12), one O(3), one O(5), and one O(7) atom to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fourth Fe site, Fe(4) is bonded to one O(13), one O(14), two equivalent O(3), and two equivalent O(7) atoms to form FeO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(1), and one Fe(3) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(3), and one Fe(4) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(1), and one Mn(2) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Fe(1), and one Fe(3) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(14)Sr4MnFe octahedra, edges with two equivalent O(7)Sr4Fe2 octahedra,  a faceface with one O(9)Sr3CaFe2 octahedra,  a faceface with one O(10)Sr4Fe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra, and  a faceface with one O(7)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the sixth O site, O(6) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Mn(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Fe(3), and one Fe(4) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(9)Sr3CaFe2 octahedra, corners with two equivalent O(10)Sr4Fe2 octahedra, edges with two equivalent O(5)Sr4Fe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(7)Sr4Fe2 octahedra, and  a faceface with one O(14)Sr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 60-61°. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Mn(1), and one Mn(2) atom. In the ninth O site, O(9) is bonded to one Sr(4), two equivalent Sr(1), one Ca(1), one Fe(1), and one Fe(2) atom to form a mixture of distorted face and corner-sharing OSr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the tenth O site, O(10) is bonded to one Sr(3), one Sr(5), two equivalent Sr(2), one Fe(1), and one Fe(2) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(9)Sr3CaFe2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(14)Sr4MnFe octahedra, and faces with two equivalent O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one Sr(4), two equivalent Sr(1), one Ca(1), one Mn(1), and one Fe(3) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one Sr(3), one Sr(5), two equivalent Sr(2), one Mn(1), and one Fe(3) atom. In the thirteenth O site, O(13) is bonded in a distorted linear geometry to one Sr(4), two equivalent Sr(1), one Ca(1), one Mn(2), and one Fe(4) atom. In the fourteenth O site, O(14) is bonded to one Sr(3), one Sr(5), two equivalent Sr(2), one Mn(2), and one Fe(4) atom to form a mixture of distorted face and corner-sharing OSr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 0-60°.
Sr7CaMn3Fe5O24 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. There are five inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(13), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(11) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, corners with four equivalent Sr(5)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(1)-O(1) bond length is 2.77 Å. The Sr(1)-O(13) bond length is 2.75 Å. The Sr(1)-O(2) bond length is 2.76 Å. The Sr(1)-O(3) bond length is 2.76 Å. The Sr(1)-O(4) bond length is 2.76 Å. The Sr(1)-O(5) bond length is 2.76 Å. The Sr(1)-O(6) bond length is 2.75 Å. The Sr(1)-O(7) bond length is 2.76 Å. The Sr(1)-O(8) bond length is 2.75 Å. The Sr(1)-O(9) bond length is 2.76 Å. Both Sr(1)-O(11) bond lengths are 2.76 Å. In the second Sr site, Sr(2) is bonded to one O(1), one O(10), one O(14), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(12) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(4)O12 cuboctahedra, corners with four equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Sr(5)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(2)-O(1) bond length is 2.79 Å. The Sr(2)-O(10) bond length is 2.76 Å. The Sr(2)-O(14) bond length is 2.75 Å. The Sr(2)-O(2) bond length is 2.78 Å. The Sr(2)-O(3) bond length is 2.79 Å. The Sr(2)-O(4) bond length is 2.78 Å. The Sr(2)-O(5) bond length is 2.77 Å. The Sr(2)-O(6) bond length is 2.76 Å. The Sr(2)-O(7) bond length is 2.76 Å. The Sr(2)-O(8) bond length is 2.76 Å. Both Sr(2)-O(12) bond lengths are 2.76 Å. In the third Sr site, Sr(3) is bonded to one O(10), one O(14), two equivalent O(1), two equivalent O(12), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(5)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(3)-O(10) bond length is 2.76 Å. The Sr(3)-O(14) bond length is 2.75 Å. Both Sr(3)-O(1) bond lengths are 2.77 Å. Both Sr(3)-O(12) bond lengths are 2.75 Å. Both Sr(3)-O(2) bond lengths are 2.76 Å. Both Sr(3)-O(3) bond lengths are 2.76 Å. Both Sr(3)-O(4) bond lengths are 2.75 Å. In the fourth Sr site, Sr(4) is bonded to one O(13), one O(9), two equivalent O(11), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(5)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(4)-O(13) bond length is 2.78 Å. The Sr(4)-O(9) bond length is 2.78 Å. Both Sr(4)-O(11) bond lengths are 2.78 Å. Both Sr(4)-O(5) bond lengths are 2.77 Å. Both Sr(4)-O(6) bond lengths are 2.76 Å. Both Sr(4)-O(7) bond lengths are 2.76 Å. Both Sr(4)-O(8) bond lengths are 2.75 Å. In the fifth Sr site, Sr(5) is bonded to one O(10), one O(14), two equivalent O(12), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(5)-O(10) bond length is 2.77 Å. The Sr(5)-O(14) bond length is 2.76 Å. Both Sr(5)-O(12) bond lengths are 2.76 Å. Both Sr(5)-O(5) bond lengths are 2.77 Å. Both Sr(5)-O(6) bond lengths are 2.76 Å. Both Sr(5)-O(7) bond lengths are 2.77 Å. Both Sr(5)-O(8) bond lengths are 2.76 Å. Ca(1) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(11), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(4)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Ca(1)-O(13) bond length is 2.73 Å. The Ca(1)-O(9) bond length is 2.74 Å. Both Ca(1)-O(1) bond lengths are 2.75 Å. Both Ca(1)-O(11) bond lengths are 2.73 Å. Both Ca(1)-O(2) bond lengths are 2.73 Å. Both Ca(1)-O(3) bond lengths are 2.74 Å. Both Ca(1)-O(4) bond lengths are 2.73 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mn(1)-O(11) bond length is 1.93 Å. The Mn(1)-O(12) bond length is 1.93 Å. The Mn(1)-O(2) bond length is 1.92 Å. The Mn(1)-O(4) bond length is 1.95 Å. The Mn(1)-O(6) bond length is 1.92 Å. The Mn(1)-O(8) bond length is 1.96 Å. In the second Mn site, Mn(2) is bonded to one O(13), one O(14), two equivalent O(4), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mn(2)-O(13) bond length is 1.93 Å. The Mn(2)-O(14) bond length is 1.94 Å. Both Mn(2)-O(4) bond lengths are 1.94 Å. Both Mn(2)-O(8) bond lengths are 1.95 Å. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(9), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(1)-O(10) bond length is 1.95 Å. The Fe(1)-O(9) bond length is 1.94 Å. Both Fe(1)-O(1) bond lengths are 1.94 Å. Both Fe(1)-O(5) bond lengths are 1.94 Å. In the second Fe site, Fe(2) is bonded to one O(10), one O(9), two equivalent O(2), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(2)-O(10) bond length is 1.97 Å. The Fe(2)-O(9) bond length is 1.97 Å. Both Fe(2)-O(2) bond lengths are 1.97 Å. Both Fe(2)-O(6) bond lengths are 1.98 Å. In the third Fe site, Fe(3) is bonded to one O(1), one O(11), one O(12), one O(3), one O(5), and one O(7) atom to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(3)-O(1) bond length is 1.95 Å. The Fe(3)-O(11) bond length is 1.98 Å. The Fe(3)-O(12) bond length is 1.98 Å. The Fe(3)-O(3) bond length is 1.95 Å. The Fe(3)-O(5) bond length is 1.96 Å. The Fe(3)-O(7) bond length is 1.95 Å. In the fourth Fe site, Fe(4) is bonded to one O(13), one O(14), two equivalent O(3), and two equivalent O(7) atoms to form FeO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Sr(5)O12 cuboctahedra,  a faceface with one Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(4)-O(13) bond length is 1.97 Å. The Fe(4)-O(14) bond length is 1.98 Å. Both Fe(4)-O(3) bond lengths are 1.94 Å. Both Fe(4)-O(7) bond lengths are 1.95 Å. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(1), and one Fe(3) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(3), and one Fe(4) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(1), and one Mn(2) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Fe(1), and one Fe(3) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(14)Sr4MnFe octahedra, edges with two equivalent O(7)Sr4Fe2 octahedra,  a faceface with one O(9)Sr3CaFe2 octahedra,  a faceface with one O(10)Sr4Fe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra, and  a faceface with one O(7)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the sixth O site, O(6) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Mn(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Fe(3), and one Fe(4) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(9)Sr3CaFe2 octahedra, corners with two equivalent O(10)Sr4Fe2 octahedra, edges with two equivalent O(5)Sr4Fe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(7)Sr4Fe2 octahedra, and  a faceface with one O(14)Sr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 60-61°. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(4), one Sr(5), one Mn(1), and one Mn(2) atom. In the ninth O site, O(9) is bonded to one Sr(4), two equivalent Sr(1), one Ca(1), one Fe(1), and one Fe(2) atom to form a mixture of distorted face and corner-sharing OSr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the tenth O site, O(10) is bonded to one Sr(3), one Sr(5), two equivalent Sr(2), one Fe(1), and one Fe(2) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(9)Sr3CaFe2 octahedra, corners with four equivalent O(7)Sr4Fe2 octahedra, corners with four equivalent O(14)Sr4MnFe octahedra, and faces with two equivalent O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one Sr(4), two equivalent Sr(1), one Ca(1), one Mn(1), and one Fe(3) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one Sr(3), one Sr(5), two equivalent Sr(2), one Mn(1), and one Fe(3) atom. In the thirteenth O site, O(13) is bonded in a distorted linear geometry to one Sr(4), two equivalent Sr(1), one Ca(1), one Mn(2), and one Fe(4) atom. In the fourteenth O site, O(14) is bonded to one Sr(3), one Sr(5), two equivalent Sr(2), one Mn(2), and one Fe(4) atom to form a mixture of distorted face and corner-sharing OSr4MnFe octahedra. The corner-sharing octahedral tilt angles range from 0-60°.