Sr4CeMn4CoO15 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(5), two equivalent O(10), two equivalent O(4), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent Sr(2)O12 cuboctahedra, corners with two equivalent Ce(1)O12 cuboctahedra, corners with three equivalent Sr(3)O12 cuboctahedra, corners with three equivalent Sr(4)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ce(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, faces with two equivalent Mn(4)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(2), one O(4), two equivalent O(10), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent Sr(2)O12 cuboctahedra, corners with two equivalent Sr(3)O12 cuboctahedra, corners with three equivalent Sr(4)O12 cuboctahedra, corners with three equivalent Ce(1)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(4)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. In the third Sr site, Sr(3) is bonded to one O(3), one O(5), two equivalent O(10), two equivalent O(2), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(2)O12 cuboctahedra, corners with two equivalent Sr(3)O12 cuboctahedra, corners with two equivalent Sr(4)O12 cuboctahedra, corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Ce(1)O12 cuboctahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. In the fourth Sr site, Sr(4) is bonded to one O(1), one O(2), two equivalent O(10), two equivalent O(3), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(3)O12 cuboctahedra, corners with two equivalent Sr(4)O12 cuboctahedra, corners with two equivalent Ce(1)O12 cuboctahedra, corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ce(1)O12 cuboctahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Co(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Mn(3)O6 octahedra. Ce(1) is bonded to one O(3), one O(4), two equivalent O(1), two equivalent O(6), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms to form CeO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent Sr(4)O12 cuboctahedra, corners with two equivalent Ce(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra, corners with three equivalent Sr(3)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Co(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 four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(5), two equivalent O(10), and two equivalent O(7) atoms 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(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Sr(4)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), two equivalent O(7), and two equivalent O(8) atoms to form MnO6 octahedra that share  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, and faces with two equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the third Mn site, Mn(3) is bonded to one O(3), one O(4), two equivalent O(6), and two equivalent O(8) atoms to form MnO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, and faces with two equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 4-7°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(5), two equivalent O(6), and two equivalent O(9) atoms 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 Co(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, and faces with two equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-10°. Co(1) is bonded to one O(2), one O(4), two equivalent O(10), and two equivalent O(9) atoms to form CoO6 octahedra that share  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, and faces with two equivalent Sr(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-10°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Sr(4), two equivalent Ce(1), one Mn(2), and one Mn(4) atom. In the second O site, O(2) is bonded to one Sr(2), one Sr(4), two equivalent Sr(3), one Mn(2), and one Co(1) atom to form distorted OSr4MnCo octahedra that share corners with two equivalent O(2)Sr4MnCo octahedra, corners with four equivalent O(10)Sr4MnCo octahedra, edges with two equivalent O(5)Sr4Mn2 octahedra, and faces with two equivalent O(10)Sr4MnCo octahedra. The corner-sharing octahedral tilt angles range from 3-61°. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(3), two equivalent Sr(4), one Ce(1), one Mn(1), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ce(1), one Mn(3), and one Co(1) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one Mn(1), and one Mn(4) atom to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(5)Sr4Mn2 octahedra, corners with four equivalent O(10)Sr4MnCo octahedra, edges with two equivalent O(2)Sr4MnCo octahedra, and faces with two equivalent O(10)Sr4MnCo octahedra. The corner-sharing octahedral tilt angles range from 4-60°. 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 Ce(1), one Mn(3), and one Mn(4) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Sr(2), one Sr(3), one Sr(4), one Ce(1), one Mn(1), and one Mn(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sr(1), one Sr(3), one Sr(4), one Ce(1), one Mn(2), and one Mn(3) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Ce(1), one Mn(4), and one Co(1) atom. In the tenth O site, O(10) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Co(1) atom to form distorted OSr4MnCo octahedra that share corners with two equivalent O(5)Sr4Mn2 octahedra, corners with two equivalent O(2)Sr4MnCo octahedra,  a faceface with one O(5)Sr4Mn2 octahedra,  a faceface with one O(2)Sr4MnCo octahedra, and faces with two equivalent O(10)Sr4MnCo octahedra. The corner-sharing octahedral tilt angles range from 59-61°.
Sr4CeMn4CoO15 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(5), two equivalent O(10), two equivalent O(4), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent Sr(2)O12 cuboctahedra, corners with two equivalent Ce(1)O12 cuboctahedra, corners with three equivalent Sr(3)O12 cuboctahedra, corners with three equivalent Sr(4)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ce(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Mn(2)O6 octahedra, faces with two equivalent Mn(3)O6 octahedra, faces with two equivalent Mn(4)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. The Sr(1)-O(1) bond length is 2.75 Å. The Sr(1)-O(5) bond length is 2.83 Å. Both Sr(1)-O(10) bond lengths are 2.71 Å. Both Sr(1)-O(4) bond lengths are 2.76 Å. Both Sr(1)-O(6) bond lengths are 2.86 Å. Both Sr(1)-O(8) bond lengths are 2.76 Å. Both Sr(1)-O(9) bond lengths are 2.68 Å. In the second Sr site, Sr(2) is bonded to one O(2), one O(4), two equivalent O(10), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent Sr(2)O12 cuboctahedra, corners with two equivalent Sr(3)O12 cuboctahedra, corners with three equivalent Sr(4)O12 cuboctahedra, corners with three equivalent Ce(1)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(4)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. The Sr(2)-O(2) bond length is 2.67 Å. The Sr(2)-O(4) bond length is 2.85 Å. Both Sr(2)-O(10) bond lengths are 2.76 Å. Both Sr(2)-O(5) bond lengths are 2.75 Å. Both Sr(2)-O(6) bond lengths are 2.74 Å. Both Sr(2)-O(7) bond lengths are 2.89 Å. Both Sr(2)-O(9) bond lengths are 2.79 Å. In the third Sr site, Sr(3) is bonded to one O(3), one O(5), two equivalent O(10), two equivalent O(2), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(2)O12 cuboctahedra, corners with two equivalent Sr(3)O12 cuboctahedra, corners with two equivalent Sr(4)O12 cuboctahedra, corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Ce(1)O12 cuboctahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(4)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. The Sr(3)-O(3) bond length is 2.80 Å. The Sr(3)-O(5) bond length is 2.65 Å. Both Sr(3)-O(10) bond lengths are 2.74 Å. Both Sr(3)-O(2) bond lengths are 2.75 Å. Both Sr(3)-O(7) bond lengths are 2.79 Å. Both Sr(3)-O(8) bond lengths are 2.75 Å. Both Sr(3)-O(9) bond lengths are 2.90 Å. In the fourth Sr site, Sr(4) is bonded to one O(1), one O(2), two equivalent O(10), two equivalent O(3), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with two equivalent Sr(3)O12 cuboctahedra, corners with two equivalent Sr(4)O12 cuboctahedra, corners with two equivalent Ce(1)O12 cuboctahedra, corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ce(1)O12 cuboctahedra,  a faceface with one Mn(4)O6 octahedra,  a faceface with one Co(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, faces with two equivalent Mn(2)O6 octahedra, and faces with two equivalent Mn(3)O6 octahedra. The Sr(4)-O(1) bond length is 2.73 Å. The Sr(4)-O(2) bond length is 2.80 Å. Both Sr(4)-O(10) bond lengths are 2.73 Å. Both Sr(4)-O(3) bond lengths are 2.75 Å. Both Sr(4)-O(6) bond lengths are 2.76 Å. Both Sr(4)-O(7) bond lengths are 2.69 Å. Both Sr(4)-O(8) bond lengths are 2.87 Å. Ce(1) is bonded to one O(3), one O(4), two equivalent O(1), two equivalent O(6), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms to form CeO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent Sr(4)O12 cuboctahedra, corners with two equivalent Ce(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra, corners with three equivalent Sr(3)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Co(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 Ce(1)-O(3) bond length is 2.72 Å. The Ce(1)-O(4) bond length is 2.59 Å. Both Ce(1)-O(1) bond lengths are 2.75 Å. Both Ce(1)-O(6) bond lengths are 2.65 Å. Both Ce(1)-O(7) bond lengths are 2.63 Å. Both Ce(1)-O(8) bond lengths are 2.61 Å. Both Ce(1)-O(9) bond lengths are 2.56 Å. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(5), two equivalent O(10), and two equivalent O(7) atoms 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(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Sr(4)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-9°. The Mn(1)-O(3) bond length is 1.94 Å. The Mn(1)-O(5) bond length is 1.95 Å. Both Mn(1)-O(10) bond lengths are 1.93 Å. Both Mn(1)-O(7) bond lengths are 1.95 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), two equivalent O(7), and two equivalent O(8) atoms to form MnO6 octahedra that share  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, and faces with two equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-9°. The Mn(2)-O(1) bond length is 1.95 Å. The Mn(2)-O(2) bond length is 1.89 Å. Both Mn(2)-O(7) bond lengths are 1.96 Å. Both Mn(2)-O(8) bond lengths are 1.93 Å. In the third Mn site, Mn(3) is bonded to one O(3), one O(4), two equivalent O(6), and two equivalent O(8) atoms to form MnO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, and faces with two equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 4-7°. The Mn(3)-O(3) bond length is 1.93 Å. The Mn(3)-O(4) bond length is 1.91 Å. Both Mn(3)-O(6) bond lengths are 1.96 Å. Both Mn(3)-O(8) bond lengths are 1.96 Å. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(5), two equivalent O(6), and two equivalent O(9) atoms 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 Co(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, and faces with two equivalent Ce(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-10°. The Mn(4)-O(1) bond length is 1.93 Å. The Mn(4)-O(5) bond length is 1.93 Å. Both Mn(4)-O(6) bond lengths are 1.93 Å. Both Mn(4)-O(9) bond lengths are 1.95 Å. Co(1) is bonded to one O(2), one O(4), two equivalent O(10), and two equivalent O(9) atoms to form CoO6 octahedra that share  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra,  a faceface with one Sr(4)O12 cuboctahedra,  a faceface with one Ce(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, and faces with two equivalent Sr(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-10°. The Co(1)-O(2) bond length is 1.98 Å. The Co(1)-O(4) bond length is 1.97 Å. Both Co(1)-O(10) bond lengths are 1.93 Å. Both Co(1)-O(9) bond lengths are 1.98 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Sr(4), two equivalent Ce(1), one Mn(2), and one Mn(4) atom. In the second O site, O(2) is bonded to one Sr(2), one Sr(4), two equivalent Sr(3), one Mn(2), and one Co(1) atom to form distorted OSr4MnCo octahedra that share corners with two equivalent O(2)Sr4MnCo octahedra, corners with four equivalent O(10)Sr4MnCo octahedra, edges with two equivalent O(5)Sr4Mn2 octahedra, and faces with two equivalent O(10)Sr4MnCo octahedra. The corner-sharing octahedral tilt angles range from 3-61°. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(3), two equivalent Sr(4), one Ce(1), one Mn(1), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ce(1), one Mn(3), and one Co(1) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one Mn(1), and one Mn(4) atom to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(5)Sr4Mn2 octahedra, corners with four equivalent O(10)Sr4MnCo octahedra, edges with two equivalent O(2)Sr4MnCo octahedra, and faces with two equivalent O(10)Sr4MnCo octahedra. The corner-sharing octahedral tilt angles range from 4-60°. 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 Ce(1), one Mn(3), and one Mn(4) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Sr(2), one Sr(3), one Sr(4), one Ce(1), one Mn(1), and one Mn(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sr(1), one Sr(3), one Sr(4), one Ce(1), one Mn(2), and one Mn(3) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Ce(1), one Mn(4), and one Co(1) atom. In the tenth O site, O(10) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Co(1) atom to form distorted OSr4MnCo octahedra that share corners with two equivalent O(5)Sr4Mn2 octahedra, corners with two equivalent O(2)Sr4MnCo octahedra,  a faceface with one O(5)Sr4Mn2 octahedra,  a faceface with one O(2)Sr4MnCo octahedra, and faces with two equivalent O(10)Sr4MnCo octahedra. The corner-sharing octahedral tilt angles range from 59-61°.