Sr2Ca6Mn5(FeO8)3 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded to one O(1), one O(3), two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)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(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(11), 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(2) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Ca(1)O12 cuboctahedra, corners with four equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. In the second Ca site, Ca(2) is bonded to one O(1), one O(3), two equivalent O(10), two equivalent O(11), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(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(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Mn(4)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four 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 two equivalent O(1), two equivalent O(10), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the third Mn site, Mn(3) is bonded to one O(10), one O(11), one O(8), one O(9), 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(4)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the fourth Mn site, Mn(4) is bonded to two equivalent O(11), two equivalent O(3), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Mn(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Fe site, Fe(2) is bonded to one O(4), one O(5), one O(6), one O(7), 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 Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(2), and one Fe(1) atom. In the second O site, O(2) is bonded to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(3), and one Fe(2) atom to form distorted OSrCa3MnFe octahedra that share corners with two equivalent O(4)Sr2Ca2Fe2 octahedra, corners with six equivalent O(2)SrCa3MnFe octahedra, and  a faceface with one O(4)Sr2Ca2Fe2 octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(1), and one Mn(4) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Ca(1), one Fe(1), and one Fe(2) atom to form distorted OSr2Ca2Fe2 octahedra that share corners with four equivalent O(2)SrCa3MnFe octahedra,  a faceface with one O(4)Sr2Ca2Fe2 octahedra, and faces with two equivalent O(2)SrCa3MnFe octahedra. The corner-sharing octahedral tilt angles range from 60-61°. In the fifth O site, O(5) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Fe(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(1), and one Fe(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(2), and one Mn(3) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(3), and one Mn(4) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(2), and one Mn(3) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(3), and one Mn(4) atom.
Sr2Ca6Mn5(FeO8)3 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded to one O(1), one O(3), two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)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(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The Sr(1)-O(1) bond length is 2.77 Å. The Sr(1)-O(3) bond length is 2.76 Å. Both Sr(1)-O(2) bond lengths are 2.76 Å. Both Sr(1)-O(4) bond lengths are 2.76 Å. Both Sr(1)-O(5) bond lengths are 2.75 Å. Both Sr(1)-O(8) bond lengths are 2.76 Å. Both Sr(1)-O(9) bond lengths are 2.76 Å. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(11), 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(2) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Ca(1)O12 cuboctahedra, corners with four equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The Ca(1)-O(1) bond length is 2.73 Å. The Ca(1)-O(10) bond length is 2.73 Å. The Ca(1)-O(11) bond length is 2.72 Å. The Ca(1)-O(3) bond length is 2.71 Å. The Ca(1)-O(4) bond length is 2.71 Å. The Ca(1)-O(5) bond length is 2.69 Å. The Ca(1)-O(6) bond length is 2.75 Å. The Ca(1)-O(7) bond length is 2.74 Å. The Ca(1)-O(8) bond length is 2.68 Å. The Ca(1)-O(9) bond length is 2.67 Å. Both Ca(1)-O(2) bond lengths are 2.72 Å. In the second Ca site, Ca(2) is bonded to one O(1), one O(3), two equivalent O(10), two equivalent O(11), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(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(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The Ca(2)-O(1) bond length is 2.68 Å. The Ca(2)-O(3) bond length is 2.66 Å. Both Ca(2)-O(10) bond lengths are 2.72 Å. Both Ca(2)-O(11) bond lengths are 2.71 Å. Both Ca(2)-O(2) bond lengths are 2.68 Å. Both Ca(2)-O(6) bond lengths are 2.72 Å. Both Ca(2)-O(7) bond lengths are 2.71 Å. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Mn(4)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. Both Mn(1)-O(3) bond lengths are 1.93 Å. Both Mn(1)-O(5) bond lengths are 1.91 Å. Both Mn(1)-O(7) bond lengths are 1.90 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent O(10), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. Both Mn(2)-O(1) bond lengths are 1.91 Å. Both Mn(2)-O(10) bond lengths are 1.91 Å. Both Mn(2)-O(8) bond lengths are 1.93 Å. In the third Mn site, Mn(3) is bonded to one O(10), one O(11), one O(8), one O(9), 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(4)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. The Mn(3)-O(10) bond length is 1.92 Å. The Mn(3)-O(11) bond length is 1.91 Å. The Mn(3)-O(8) bond length is 1.94 Å. The Mn(3)-O(9) bond length is 1.93 Å. Both Mn(3)-O(2) bond lengths are 1.90 Å. In the fourth Mn site, Mn(4) is bonded to two equivalent O(11), two equivalent O(3), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Mn(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. Both Mn(4)-O(11) bond lengths are 1.91 Å. Both Mn(4)-O(3) bond lengths are 1.93 Å. Both Mn(4)-O(9) bond lengths are 1.93 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. Both Fe(1)-O(1) bond lengths are 1.95 Å. Both Fe(1)-O(4) bond lengths are 1.92 Å. Both Fe(1)-O(6) bond lengths are 1.90 Å. In the second Fe site, Fe(2) is bonded to one O(4), one O(5), one O(6), one O(7), 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 Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Fe(2)-O(4) bond length is 1.94 Å. The Fe(2)-O(5) bond length is 1.95 Å. The Fe(2)-O(6) bond length is 1.92 Å. The Fe(2)-O(7) bond length is 1.93 Å. Both Fe(2)-O(2) bond lengths are 1.96 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(2), and one Fe(1) atom. In the second O site, O(2) is bonded to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(3), and one Fe(2) atom to form distorted OSrCa3MnFe octahedra that share corners with two equivalent O(4)Sr2Ca2Fe2 octahedra, corners with six equivalent O(2)SrCa3MnFe octahedra, and  a faceface with one O(4)Sr2Ca2Fe2 octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(1), and one Mn(4) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Ca(1), one Fe(1), and one Fe(2) atom to form distorted OSr2Ca2Fe2 octahedra that share corners with four equivalent O(2)SrCa3MnFe octahedra,  a faceface with one O(4)Sr2Ca2Fe2 octahedra, and faces with two equivalent O(2)SrCa3MnFe octahedra. The corner-sharing octahedral tilt angles range from 60-61°. In the fifth O site, O(5) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Fe(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(1), and one Fe(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(2), and one Mn(3) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(3), and one Mn(4) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(2), and one Mn(3) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(3), and one Mn(4) atom.