SmLa7Mn5(FeO8)3 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. Sm(1) is bonded to one O(13), one O(9), two equivalent O(10), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(2)O12 cuboctahedra, corners with eight equivalent La(3)O12 cuboctahedra, faces with two equivalent La(5)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. There are five inequivalent La sites. In the first La site, La(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(10) atoms to form LaO12 cuboctahedra that share corners with four equivalent La(1)O12 cuboctahedra, corners with four equivalent La(4)O12 cuboctahedra, corners with four equivalent La(5)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. In the second La site, La(2) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(10), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with eight equivalent La(3)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. In the third La site, La(3) is bonded to one O(1), one O(11), 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 LaO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, corners with four equivalent La(3)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, faces with two equivalent La(5)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. In the fourth La site, La(4) is bonded to one O(11), 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 LaO12 cuboctahedra that share corners with four equivalent La(5)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with four equivalent La(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. In the fifth La site, La(5) is bonded to one O(11), 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 LaO12 cuboctahedra that share corners with four equivalent La(4)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with four equivalent La(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)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 one O(11), one O(9), two equivalent O(3), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Mn site, Mn(2) is bonded to one O(10), one O(12), one O(3), one O(4), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the third Mn site, Mn(3) is bonded to one O(13), one O(14), two equivalent O(2), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Mn(4)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fourth Mn site, Mn(4) 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 Mn(3)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(11), one O(9), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(12), one O(2), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)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 to one La(1), one La(2), one La(3), one La(4), one Fe(1), and one Fe(2) atom to form distorted OLa4Fe2 octahedra that share corners with two equivalent O(5)La3SmFe2 octahedra,  a faceface with one O(5)La3SmFe2 octahedra, and  a faceface with one O(1)La4Fe2 octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded in a distorted linear geometry to one La(1), one La(2), one La(3), one La(4), one Mn(3), and one Fe(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one La(1), one La(2), one La(3), one La(4), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one La(1), one La(2), one La(3), one La(4), one Mn(2), and one Mn(4) atom. In the fifth O site, O(5) is bonded to one Sm(1), one La(1), one La(3), one La(5), one Fe(1), and one Fe(2) atom to form distorted OLa3SmFe2 octahedra that share corners with two equivalent O(1)La4Fe2 octahedra,  a faceface with one O(5)La3SmFe2 octahedra, and  a faceface with one O(1)La4Fe2 octahedra. The corner-sharing octahedra are not tilted. In the sixth O site, O(6) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(5), one Mn(3), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(5), one Mn(1), and one Mn(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(5), one Mn(2), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to one Sm(1), one La(2), two equivalent La(1), one Mn(1), and one Fe(1) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to one Sm(1), one La(2), two equivalent La(1), one Mn(2), and one Fe(2) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one La(4), one La(5), two equivalent La(3), one Mn(1), and one Fe(1) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one La(4), one La(5), two equivalent La(3), one Mn(2), and one Fe(2) atom. In the thirteenth O site, O(13) is bonded in a distorted linear geometry to one Sm(1), one La(2), two equivalent La(1), one Mn(3), and one Mn(4) atom. In the fourteenth O site, O(14) is bonded in a distorted linear geometry to one La(4), one La(5), two equivalent La(3), one Mn(3), and one Mn(4) atom.
SmLa7Mn5(FeO8)3 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. Sm(1) is bonded to one O(13), one O(9), two equivalent O(10), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(2)O12 cuboctahedra, corners with eight equivalent La(3)O12 cuboctahedra, faces with two equivalent La(5)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The Sm(1)-O(13) bond length is 2.77 Å. The Sm(1)-O(9) bond length is 2.73 Å. Both Sm(1)-O(10) bond lengths are 2.75 Å. Both Sm(1)-O(5) bond lengths are 2.71 Å. Both Sm(1)-O(6) bond lengths are 2.73 Å. Both Sm(1)-O(7) bond lengths are 2.77 Å. Both Sm(1)-O(8) bond lengths are 2.79 Å. There are five inequivalent La sites. In the first La site, La(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(10) atoms to form LaO12 cuboctahedra that share corners with four equivalent La(1)O12 cuboctahedra, corners with four equivalent La(4)O12 cuboctahedra, corners with four equivalent La(5)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The La(1)-O(1) bond length is 2.74 Å. The La(1)-O(13) bond length is 2.79 Å. The La(1)-O(2) bond length is 2.75 Å. The La(1)-O(3) bond length is 2.78 Å. The La(1)-O(4) bond length is 2.80 Å. The La(1)-O(5) bond length is 2.74 Å. The La(1)-O(6) bond length is 2.76 Å. The La(1)-O(7) bond length is 2.79 Å. The La(1)-O(8) bond length is 2.80 Å. The La(1)-O(9) bond length is 2.75 Å. Both La(1)-O(10) bond lengths are 2.77 Å. In the second La site, La(2) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(10), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with eight equivalent La(3)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The La(2)-O(13) bond length is 2.80 Å. The La(2)-O(9) bond length is 2.77 Å. Both La(2)-O(1) bond lengths are 2.74 Å. Both La(2)-O(10) bond lengths are 2.79 Å. Both La(2)-O(2) bond lengths are 2.75 Å. Both La(2)-O(3) bond lengths are 2.79 Å. Both La(2)-O(4) bond lengths are 2.80 Å. In the third La site, La(3) is bonded to one O(1), one O(11), 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 LaO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, corners with four equivalent La(3)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, faces with two equivalent La(5)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The La(3)-O(1) bond length is 2.74 Å. The La(3)-O(11) bond length is 2.75 Å. The La(3)-O(14) bond length is 2.79 Å. The La(3)-O(2) bond length is 2.75 Å. The La(3)-O(3) bond length is 2.79 Å. The La(3)-O(4) bond length is 2.80 Å. The La(3)-O(5) bond length is 2.76 Å. The La(3)-O(6) bond length is 2.78 Å. The La(3)-O(7) bond length is 2.80 Å. The La(3)-O(8) bond length is 2.82 Å. Both La(3)-O(12) bond lengths are 2.77 Å. In the fourth La site, La(4) is bonded to one O(11), 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 LaO12 cuboctahedra that share corners with four equivalent La(5)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with four equivalent La(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The La(4)-O(11) bond length is 2.75 Å. The La(4)-O(14) bond length is 2.79 Å. Both La(4)-O(1) bond lengths are 2.73 Å. Both La(4)-O(12) bond lengths are 2.77 Å. Both La(4)-O(2) bond lengths are 2.76 Å. Both La(4)-O(3) bond lengths are 2.79 Å. Both La(4)-O(4) bond lengths are 2.81 Å. In the fifth La site, La(5) is bonded to one O(11), 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 LaO12 cuboctahedra that share corners with four equivalent La(4)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with four equivalent La(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The La(5)-O(11) bond length is 2.75 Å. The La(5)-O(14) bond length is 2.78 Å. Both La(5)-O(12) bond lengths are 2.77 Å. Both La(5)-O(5) bond lengths are 2.74 Å. Both La(5)-O(6) bond lengths are 2.75 Å. Both La(5)-O(7) bond lengths are 2.79 Å. Both La(5)-O(8) bond lengths are 2.80 Å. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(9), two equivalent O(3), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mn(1)-O(11) bond length is 1.96 Å. The Mn(1)-O(9) bond length is 1.95 Å. Both Mn(1)-O(3) bond lengths are 1.96 Å. Both Mn(1)-O(7) bond lengths are 1.95 Å. In the second Mn site, Mn(2) is bonded to one O(10), one O(12), one O(3), one O(4), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mn(2)-O(10) bond length is 1.90 Å. The Mn(2)-O(12) bond length is 1.90 Å. The Mn(2)-O(3) bond length is 1.96 Å. The Mn(2)-O(4) bond length is 1.96 Å. The Mn(2)-O(7) bond length is 1.95 Å. The Mn(2)-O(8) bond length is 1.96 Å. In the third Mn site, Mn(3) is bonded to one O(13), one O(14), two equivalent O(2), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Mn(4)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mn(3)-O(13) bond length is 1.95 Å. The Mn(3)-O(14) bond length is 1.95 Å. Both Mn(3)-O(2) bond lengths are 1.90 Å. Both Mn(3)-O(6) bond lengths are 1.90 Å. In the fourth Mn site, Mn(4) 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 Mn(3)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mn(4)-O(13) bond length is 1.97 Å. The Mn(4)-O(14) bond length is 1.98 Å. Both Mn(4)-O(4) bond lengths are 1.96 Å. Both Mn(4)-O(8) bond lengths are 1.95 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(11), one O(9), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(1)-O(11) bond length is 1.97 Å. The Fe(1)-O(9) bond length is 1.96 Å. Both Fe(1)-O(1) bond lengths are 1.92 Å. Both Fe(1)-O(5) bond lengths are 1.91 Å. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(12), one O(2), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra,  a faceface with one La(5)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with two equivalent La(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(2)-O(1) bond length is 2.00 Å. The Fe(2)-O(10) bond length is 2.02 Å. The Fe(2)-O(12) bond length is 2.02 Å. The Fe(2)-O(2) bond length is 2.02 Å. The Fe(2)-O(5) bond length is 1.99 Å. The Fe(2)-O(6) bond length is 2.01 Å. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded to one La(1), one La(2), one La(3), one La(4), one Fe(1), and one Fe(2) atom to form distorted OLa4Fe2 octahedra that share corners with two equivalent O(5)La3SmFe2 octahedra,  a faceface with one O(5)La3SmFe2 octahedra, and  a faceface with one O(1)La4Fe2 octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded in a distorted linear geometry to one La(1), one La(2), one La(3), one La(4), one Mn(3), and one Fe(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one La(1), one La(2), one La(3), one La(4), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one La(1), one La(2), one La(3), one La(4), one Mn(2), and one Mn(4) atom. In the fifth O site, O(5) is bonded to one Sm(1), one La(1), one La(3), one La(5), one Fe(1), and one Fe(2) atom to form distorted OLa3SmFe2 octahedra that share corners with two equivalent O(1)La4Fe2 octahedra,  a faceface with one O(5)La3SmFe2 octahedra, and  a faceface with one O(1)La4Fe2 octahedra. The corner-sharing octahedra are not tilted. In the sixth O site, O(6) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(5), one Mn(3), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(5), one Mn(1), and one Mn(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(5), one Mn(2), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to one Sm(1), one La(2), two equivalent La(1), one Mn(1), and one Fe(1) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to one Sm(1), one La(2), two equivalent La(1), one Mn(2), and one Fe(2) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one La(4), one La(5), two equivalent La(3), one Mn(1), and one Fe(1) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one La(4), one La(5), two equivalent La(3), one Mn(2), and one Fe(2) atom. In the thirteenth O site, O(13) is bonded in a distorted linear geometry to one Sm(1), one La(2), two equivalent La(1), one Mn(3), and one Mn(4) atom. In the fourteenth O site, O(14) is bonded in a distorted linear geometry to one La(4), one La(5), two equivalent La(3), one Mn(3), and one Mn(4) atom.