Sr6Ca2Mn5(FeO8)3 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic P2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(10), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(1), one O(10), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. In the third Sr site, Sr(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(7), and one O(8) atom 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(2)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. Ca(1) is bonded to one O(1), one O(11), one O(12), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form CaO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(6), one O(8), two equivalent O(14), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Mn(5)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Mn site, Mn(2) is bonded to one O(11), one O(9), two equivalent O(1), and two equivalent O(15) atoms to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third Mn site, Mn(3) is bonded to one O(10), one O(12), two equivalent O(15), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth Mn site, Mn(4) is bonded to one O(11), one O(9), two equivalent O(16), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fifth Mn site, Mn(5) is bonded to one O(10), one O(12), two equivalent O(16), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(13) atoms to form FeO6 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, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Fe site, Fe(2) is bonded to one O(6), one O(8), two equivalent O(13), and two equivalent O(2) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the third Fe site, Fe(3) is bonded to one O(5), one O(7), two equivalent O(14), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are sixteen 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 Mn(2), and one Fe(1) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(3), and one Fe(2) atom to form distorted OSr3CaMnFe octahedra that share corners with two equivalent O(2)Sr3CaMnFe octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, and corners with four equivalent O(3)Sr3CaMnFe octahedra. The corner-sharing octahedral tilt angles range from 1-60°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(4), and one Fe(3) atom to form distorted OSr3CaMnFe octahedra that share corners with two equivalent O(3)Sr3CaMnFe octahedra, corners with four equivalent O(2)Sr3CaMnFe octahedra, and  a faceface with one O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 1°. 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(5) atom. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Fe(3) atom to form a mixture of distorted corner and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Mn(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Fe(1), and one Fe(3) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Mn(2), and one Mn(4) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Mn(3), and one Mn(5) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(2), and one Mn(4) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(3), and one Mn(5) atom. In the thirteenth O site, O(13) 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(2) atom. In the fourteenth O site, O(14) 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(3) atom. In the fifteenth O site, O(15) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(2), and one Mn(3) atom. In the sixteenth O site, O(16) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(4), and one Mn(5) atom.
Sr6Ca2Mn5(FeO8)3 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic P2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(10), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The Sr(1)-O(1) bond length is 2.76 Å. The Sr(1)-O(10) bond length is 2.74 Å. The Sr(1)-O(13) bond length is 2.77 Å. The Sr(1)-O(14) bond length is 2.76 Å. The Sr(1)-O(15) bond length is 2.75 Å. The Sr(1)-O(16) bond length is 2.74 Å. The Sr(1)-O(2) bond length is 2.75 Å. The Sr(1)-O(3) bond length is 2.75 Å. The Sr(1)-O(4) bond length is 2.74 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(9) bond length is 2.75 Å. In the second Sr site, Sr(2) is bonded to one O(1), one O(10), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The Sr(2)-O(1) bond length is 2.78 Å. The Sr(2)-O(10) bond length is 2.74 Å. The Sr(2)-O(13) bond length is 2.79 Å. The Sr(2)-O(14) bond length is 2.78 Å. The Sr(2)-O(15) bond length is 2.78 Å. The Sr(2)-O(16) bond length is 2.78 Å. The Sr(2)-O(2) bond length is 2.77 Å. The Sr(2)-O(3) bond length is 2.77 Å. The Sr(2)-O(4) bond length is 2.77 Å. The Sr(2)-O(5) bond length is 2.76 Å. The Sr(2)-O(6) bond length is 2.75 Å. The Sr(2)-O(9) bond length is 2.75 Å. In the third Sr site, Sr(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(7), and one O(8) atom 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(2)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The Sr(3)-O(1) bond length is 2.74 Å. The Sr(3)-O(11) bond length is 2.75 Å. The Sr(3)-O(12) bond length is 2.74 Å. The Sr(3)-O(13) bond length is 2.75 Å. The Sr(3)-O(14) bond length is 2.75 Å. The Sr(3)-O(15) bond length is 2.74 Å. The Sr(3)-O(16) bond length is 2.74 Å. The Sr(3)-O(2) bond length is 2.73 Å. The Sr(3)-O(3) bond length is 2.74 Å. The Sr(3)-O(4) bond length is 2.73 Å. The Sr(3)-O(7) bond length is 2.76 Å. The Sr(3)-O(8) bond length is 2.75 Å. Ca(1) is bonded to one O(1), one O(11), one O(12), one O(13), one O(14), one O(15), one O(16), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form CaO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The Ca(1)-O(1) bond length is 2.72 Å. The Ca(1)-O(11) bond length is 2.75 Å. The Ca(1)-O(12) bond length is 2.74 Å. The Ca(1)-O(13) bond length is 2.73 Å. The Ca(1)-O(14) bond length is 2.72 Å. The Ca(1)-O(15) bond length is 2.71 Å. The Ca(1)-O(16) bond length is 2.70 Å. The Ca(1)-O(2) bond length is 2.71 Å. The Ca(1)-O(3) bond length is 2.71 Å. The Ca(1)-O(4) bond length is 2.70 Å. The Ca(1)-O(7) bond length is 2.76 Å. The Ca(1)-O(8) bond length is 2.75 Å. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(6), one O(8), two equivalent O(14), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Mn(5)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Mn(1)-O(6) bond length is 1.93 Å. The Mn(1)-O(8) bond length is 1.90 Å. Both Mn(1)-O(14) bond lengths are 1.92 Å. Both Mn(1)-O(4) bond lengths are 1.96 Å. In the second Mn site, Mn(2) is bonded to one O(11), one O(9), two equivalent O(1), and two equivalent O(15) atoms to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Mn(2)-O(11) bond length is 1.93 Å. The Mn(2)-O(9) bond length is 1.95 Å. Both Mn(2)-O(1) bond lengths are 1.93 Å. Both Mn(2)-O(15) bond lengths are 1.94 Å. In the third Mn site, Mn(3) is bonded to one O(10), one O(12), two equivalent O(15), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Mn(3)-O(10) bond length is 1.95 Å. The Mn(3)-O(12) bond length is 1.93 Å. Both Mn(3)-O(15) bond lengths are 1.94 Å. Both Mn(3)-O(2) bond lengths are 1.91 Å. In the fourth Mn site, Mn(4) is bonded to one O(11), one O(9), two equivalent O(16), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Mn(4)-O(11) bond length is 1.93 Å. The Mn(4)-O(9) bond length is 1.95 Å. Both Mn(4)-O(16) bond lengths are 1.94 Å. Both Mn(4)-O(3) bond lengths are 1.92 Å. In the fifth Mn site, Mn(5) is bonded to one O(10), one O(12), two equivalent O(16), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Mn(5)-O(10) bond length is 1.94 Å. The Mn(5)-O(12) bond length is 1.93 Å. Both Mn(5)-O(16) bond lengths are 1.94 Å. Both Mn(5)-O(4) bond lengths are 1.94 Å. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(13) atoms to form FeO6 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, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(1)-O(5) bond length is 1.93 Å. The Fe(1)-O(7) bond length is 1.91 Å. Both Fe(1)-O(1) bond lengths are 1.97 Å. Both Fe(1)-O(13) bond lengths are 1.92 Å. In the second Fe site, Fe(2) is bonded to one O(6), one O(8), two equivalent O(13), and two equivalent O(2) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(2)-O(6) bond length is 1.97 Å. The Fe(2)-O(8) bond length is 1.95 Å. Both Fe(2)-O(13) bond lengths are 1.95 Å. Both Fe(2)-O(2) bond lengths are 1.99 Å. In the third Fe site, Fe(3) is bonded to one O(5), one O(7), two equivalent O(14), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(3)-O(5) bond length is 1.96 Å. The Fe(3)-O(7) bond length is 1.94 Å. Both Fe(3)-O(14) bond lengths are 1.96 Å. Both Fe(3)-O(3) bond lengths are 1.99 Å. There are sixteen 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 Mn(2), and one Fe(1) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(3), and one Fe(2) atom to form distorted OSr3CaMnFe octahedra that share corners with two equivalent O(2)Sr3CaMnFe octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, and corners with four equivalent O(3)Sr3CaMnFe octahedra. The corner-sharing octahedral tilt angles range from 1-60°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(4), and one Fe(3) atom to form distorted OSr3CaMnFe octahedra that share corners with two equivalent O(3)Sr3CaMnFe octahedra, corners with four equivalent O(2)Sr3CaMnFe octahedra, and  a faceface with one O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 1°. 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(5) atom. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Fe(3) atom to form a mixture of distorted corner and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Mn(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Fe(1), and one Fe(3) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Mn(2), and one Mn(4) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Mn(3), and one Mn(5) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(2), and one Mn(4) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(3), and one Mn(5) atom. In the thirteenth O site, O(13) 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(2) atom. In the fourteenth O site, O(14) 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(3) atom. In the fifteenth O site, O(15) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(2), and one Mn(3) atom. In the sixteenth O site, O(16) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(4), and one Mn(5) atom.