Sr3La5Mn8O24 crystallizes in the monoclinic C2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(3), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(10), one O(14), two equivalent O(11), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(8) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. In the third Sr site, Sr(3) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(11), two equivalent O(12), two equivalent O(2), and two equivalent O(5) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to one O(11), one O(12), one O(13), one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. In the second La site, La(2) is bonded to one O(10), one O(14), two equivalent O(12), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms to form distorted LaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. In the third La site, La(3) is bonded in a 12-coordinate geometry to one O(10), one O(11), one O(12), one O(14), one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), and two equivalent O(4) atoms. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(3), and one O(7) atom to form MnO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-19°. In the second Mn site, Mn(2) is bonded to one O(1), one O(11), one O(14), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-18°. In the third Mn site, Mn(3) is bonded to one O(11), one O(12), one O(13), one O(3), one O(4), and one O(6) atom to form MnO6 octahedra that share  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-19°. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(4), one O(5), one O(7), one O(8), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 13-18°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), two equivalent La(1), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Sr(2), one Sr(3), one La(1), one La(3), one Mn(1), and one Mn(4) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(3), one Mn(1), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Sr(2), one La(2), two equivalent La(3), one Mn(3), and one Mn(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Sr(3), one La(1), one La(2), one La(3), one Mn(2), and one Mn(4) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Sr(1), one La(1), one La(2), one La(3), one Mn(2), and one Mn(3) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sr(1), one La(1), one La(2), one La(3), one Mn(1), and one Mn(4) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(3), one Mn(2), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(3), two equivalent La(1), and two equivalent Mn(4) atoms. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Sr(2), one La(2), two equivalent La(3), and two equivalent Mn(1) atoms. In the eleventh O site, O(11) is bonded in a 2-coordinate geometry to one Sr(2), one Sr(3), one La(1), one La(3), one Mn(2), and one Mn(3) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Sr(3), one La(1), one La(2), one La(3), one Mn(1), and one Mn(3) atom. In the thirteenth O site, O(13) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(3), two equivalent La(1), and two equivalent Mn(3) atoms. In the fourteenth O site, O(14) is bonded in a 2-coordinate geometry to one Sr(2), one La(2), two equivalent La(3), and two equivalent Mn(2) atoms.
Sr3La5Mn8O24 crystallizes in the monoclinic C2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(3), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. The Sr(1)-O(13) bond length is 2.56 Å. The Sr(1)-O(9) bond length is 3.01 Å. Both Sr(1)-O(1) bond lengths are 2.78 Å. Both Sr(1)-O(3) bond lengths are 2.79 Å. Both Sr(1)-O(6) bond lengths are 3.08 Å. Both Sr(1)-O(7) bond lengths are 2.84 Å. Both Sr(1)-O(8) bond lengths are 2.56 Å. In the second Sr site, Sr(2) is bonded to one O(10), one O(14), two equivalent O(11), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(8) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. The Sr(2)-O(10) bond length is 3.10 Å. The Sr(2)-O(14) bond length is 2.57 Å. Both Sr(2)-O(11) bond lengths are 2.78 Å. Both Sr(2)-O(2) bond lengths are 2.57 Å. Both Sr(2)-O(3) bond lengths are 2.79 Å. Both Sr(2)-O(4) bond lengths are 2.84 Å. Both Sr(2)-O(8) bond lengths are 3.01 Å. In the third Sr site, Sr(3) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(11), two equivalent O(12), two equivalent O(2), and two equivalent O(5) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. The Sr(3)-O(13) bond length is 3.02 Å. The Sr(3)-O(9) bond length is 2.57 Å. Both Sr(3)-O(1) bond lengths are 2.79 Å. Both Sr(3)-O(11) bond lengths are 2.78 Å. Both Sr(3)-O(12) bond lengths are 2.58 Å. Both Sr(3)-O(2) bond lengths are 3.02 Å. Both Sr(3)-O(5) bond lengths are 2.84 Å. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to one O(11), one O(12), one O(13), one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. The La(1)-O(11) bond length is 2.49 Å. The La(1)-O(12) bond length is 2.79 Å. The La(1)-O(13) bond length is 2.78 Å. The La(1)-O(2) bond length is 2.78 Å. The La(1)-O(3) bond length is 3.10 Å. The La(1)-O(5) bond length is 3.10 Å. The La(1)-O(6) bond length is 2.80 Å. The La(1)-O(7) bond length is 2.50 Å. The La(1)-O(8) bond length is 2.78 Å. The La(1)-O(9) bond length is 2.77 Å. There is one shorter (2.48 Å) and one longer (3.10 Å) La(1)-O(1) bond length. In the second La site, La(2) is bonded to one O(10), one O(14), two equivalent O(12), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms to form distorted LaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. The La(2)-O(10) bond length is 2.49 Å. The La(2)-O(14) bond length is 2.99 Å. Both La(2)-O(12) bond lengths are 2.99 Å. Both La(2)-O(4) bond lengths are 2.73 Å. Both La(2)-O(5) bond lengths are 2.73 Å. Both La(2)-O(6) bond lengths are 2.50 Å. Both La(2)-O(7) bond lengths are 2.73 Å. In the third La site, La(3) is bonded in a 12-coordinate geometry to one O(10), one O(11), one O(12), one O(14), one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), and two equivalent O(4) atoms. The La(3)-O(10) bond length is 2.78 Å. The La(3)-O(11) bond length is 3.08 Å. The La(3)-O(12) bond length is 2.77 Å. The La(3)-O(14) bond length is 2.78 Å. The La(3)-O(2) bond length is 2.76 Å. The La(3)-O(3) bond length is 2.47 Å. The La(3)-O(5) bond length is 2.49 Å. The La(3)-O(6) bond length is 2.78 Å. The La(3)-O(7) bond length is 3.09 Å. The La(3)-O(8) bond length is 2.77 Å. There is one shorter (2.49 Å) and one longer (3.09 Å) La(3)-O(4) bond length. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(3), and one O(7) atom to form MnO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-19°. The Mn(1)-O(1) bond length is 1.98 Å. The Mn(1)-O(10) bond length is 2.00 Å. The Mn(1)-O(12) bond length is 1.98 Å. The Mn(1)-O(2) bond length is 1.97 Å. The Mn(1)-O(3) bond length is 1.99 Å. The Mn(1)-O(7) bond length is 1.99 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(11), one O(14), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-18°. The Mn(2)-O(1) bond length is 1.99 Å. The Mn(2)-O(11) bond length is 1.98 Å. The Mn(2)-O(14) bond length is 1.98 Å. The Mn(2)-O(5) bond length is 1.99 Å. The Mn(2)-O(6) bond length is 1.99 Å. The Mn(2)-O(8) bond length is 1.97 Å. In the third Mn site, Mn(3) is bonded to one O(11), one O(12), one O(13), one O(3), one O(4), and one O(6) atom to form MnO6 octahedra that share  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-19°. The Mn(3)-O(11) bond length is 1.98 Å. The Mn(3)-O(12) bond length is 1.98 Å. The Mn(3)-O(13) bond length is 1.98 Å. The Mn(3)-O(3) bond length is 1.99 Å. The Mn(3)-O(4) bond length is 2.00 Å. The Mn(3)-O(6) bond length is 1.99 Å. In the fourth Mn site, Mn(4) is bonded to one O(2), one O(4), one O(5), one O(7), one O(8), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, and  a faceface with one La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 13-18°. The Mn(4)-O(2) bond length is 1.97 Å. The Mn(4)-O(4) bond length is 1.99 Å. The Mn(4)-O(5) bond length is 1.99 Å. The Mn(4)-O(7) bond length is 1.99 Å. The Mn(4)-O(8) bond length is 1.97 Å. The Mn(4)-O(9) bond length is 1.97 Å. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), two equivalent La(1), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Sr(2), one Sr(3), one La(1), one La(3), one Mn(1), and one Mn(4) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(3), one Mn(1), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Sr(2), one La(2), two equivalent La(3), one Mn(3), and one Mn(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Sr(3), one La(1), one La(2), one La(3), one Mn(2), and one Mn(4) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Sr(1), one La(1), one La(2), one La(3), one Mn(2), and one Mn(3) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sr(1), one La(1), one La(2), one La(3), one Mn(1), and one Mn(4) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(3), one Mn(2), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(3), two equivalent La(1), and two equivalent Mn(4) atoms. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Sr(2), one La(2), two equivalent La(3), and two equivalent Mn(1) atoms. In the eleventh O site, O(11) is bonded in a 2-coordinate geometry to one Sr(2), one Sr(3), one La(1), one La(3), one Mn(2), and one Mn(3) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Sr(3), one La(1), one La(2), one La(3), one Mn(1), and one Mn(3) atom. In the thirteenth O site, O(13) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(3), two equivalent La(1), and two equivalent Mn(3) atoms. In the fourteenth O site, O(14) is bonded in a 2-coordinate geometry to one Sr(2), one La(2), two equivalent La(3), and two equivalent Mn(2) atoms.