Sr4LaFe2(CoO5)3 is (Cubic) Perovskite-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), two equivalent O(2), two equivalent O(5), and three equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with five equivalent Sr(2)O12 cuboctahedra,  a faceface with one La(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra,  a faceface with one Co(2)O6 octahedra, faces with three equivalent Co(1)O6 octahedra, and faces with four equivalent Fe(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(8), one O(9), two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms to form SrO12 cuboctahedra that share corners with two equivalent La(1)O12 cuboctahedra, corners with five equivalent Sr(1)O12 cuboctahedra, corners with five equivalent Sr(2)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Co(2)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Co(1)O6 octahedra. La(1) is bonded to two equivalent O(1), two equivalent O(2), 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 two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with six equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, faces with two equivalent Co(2)O6 octahedra, and faces with four equivalent Co(1)O6 octahedra. Fe(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Co(1)O6 octahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-6°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(8), and one O(9) atom to form CoO6 octahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms to form CoO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 2-6°. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), two equivalent Sr(2), one La(1), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one La(1), one Fe(1), and one Co(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Fe(1) atoms. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Fe(1) atoms to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(8)Sr2La2Co2 octahedra, corners with two equivalent O(7)Sr3LaFeCo octahedra, corners with four equivalent O(5)Sr3LaFeCo octahedra, corners with four equivalent O(9)Sr4FeCo octahedra, edges with two equivalent O(5)Sr3LaFeCo octahedra, faces with two equivalent O(7)Sr3LaFeCo octahedra, and faces with two equivalent O(9)Sr4FeCo octahedra. The corner-sharing octahedral tilt angles range from 3-61°. In the fifth O site, O(5) is bonded to one Sr(2), two equivalent Sr(1), one La(1), one Fe(1), and one Co(1) atom to form distorted OSr3LaFeCo octahedra that share  a cornercorner with one O(8)Sr2La2Co2 octahedra,  a cornercorner with one O(5)Sr3LaFeCo octahedra, corners with two equivalent O(4)Sr4Fe2 octahedra, corners with three equivalent O(9)Sr4FeCo octahedra, corners with four equivalent O(7)Sr3LaFeCo octahedra,  an edgeedge with one O(5)Sr3LaFeCo octahedra,  an edgeedge with one O(4)Sr4Fe2 octahedra,  a faceface with one O(8)Sr2La2Co2 octahedra,  a faceface with one O(7)Sr3LaFeCo octahedra, and faces with two equivalent O(9)Sr4FeCo octahedra. The corner-sharing octahedral tilt angles range from 0-63°. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(1), two equivalent Sr(2), one La(1), one Co(1), and one Co(2) atom. In the seventh O site, O(7) is bonded to one Sr(1), two equivalent Sr(2), one La(1), one Fe(1), and one Co(2) atom to form distorted OSr3LaFeCo octahedra that share  a cornercorner with one O(4)Sr4Fe2 octahedra, corners with two equivalent O(9)Sr4FeCo octahedra, corners with four equivalent O(5)Sr3LaFeCo octahedra, corners with four equivalent O(7)Sr3LaFeCo octahedra, edges with two equivalent O(8)Sr2La2Co2 octahedra, edges with two equivalent O(9)Sr4FeCo octahedra,  a faceface with one O(5)Sr3LaFeCo octahedra, and  a faceface with one O(4)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the eighth O site, O(8) is bonded to two equivalent Sr(2), two equivalent La(1), and two equivalent Co(1) atoms to form distorted OSr2La2Co2 octahedra that share corners with two equivalent O(8)Sr2La2Co2 octahedra, corners with two equivalent O(5)Sr3LaFeCo octahedra, corners with two equivalent O(4)Sr4Fe2 octahedra, corners with four equivalent O(9)Sr4FeCo octahedra, edges with four equivalent O(7)Sr3LaFeCo octahedra, and faces with two equivalent O(5)Sr3LaFeCo octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the ninth O site, O(9) is bonded to one Sr(2), three equivalent Sr(1), one Fe(1), and one Co(1) atom to form distorted OSr4FeCo octahedra that share corners with two equivalent O(8)Sr2La2Co2 octahedra, corners with two equivalent O(7)Sr3LaFeCo octahedra, corners with two equivalent O(4)Sr4Fe2 octahedra, corners with two equivalent O(9)Sr4FeCo octahedra, corners with three equivalent O(5)Sr3LaFeCo octahedra, edges with two equivalent O(7)Sr3LaFeCo octahedra, edges with two equivalent O(9)Sr4FeCo octahedra,  a faceface with one O(4)Sr4Fe2 octahedra, and faces with two equivalent O(5)Sr3LaFeCo octahedra. The corner-sharing octahedral tilt angles range from 1-63°.
Sr4LaFe2(CoO5)3 is (Cubic) Perovskite-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), two equivalent O(2), two equivalent O(5), and three equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with five equivalent Sr(2)O12 cuboctahedra,  a faceface with one La(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra,  a faceface with one Co(2)O6 octahedra, faces with three equivalent Co(1)O6 octahedra, and faces with four equivalent Fe(1)O6 octahedra. The Sr(1)-O(1) bond length is 2.80 Å. The Sr(1)-O(3) bond length is 2.76 Å. The Sr(1)-O(4) bond length is 2.77 Å. The Sr(1)-O(6) bond length is 2.77 Å. The Sr(1)-O(7) bond length is 2.83 Å. There is one shorter (2.78 Å) and one longer (2.86 Å) Sr(1)-O(2) bond length. There is one shorter (2.77 Å) and one longer (2.84 Å) Sr(1)-O(5) bond length. There are a spread of Sr(1)-O(9) bond distances ranging from 2.71-2.75 Å. In the second Sr site, Sr(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(8), one O(9), two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms to form SrO12 cuboctahedra that share corners with two equivalent La(1)O12 cuboctahedra, corners with five equivalent Sr(1)O12 cuboctahedra, corners with five equivalent Sr(2)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Co(2)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Co(1)O6 octahedra. The Sr(2)-O(2) bond length is 2.79 Å. The Sr(2)-O(3) bond length is 2.77 Å. The Sr(2)-O(4) bond length is 2.76 Å. The Sr(2)-O(5) bond length is 2.75 Å. The Sr(2)-O(8) bond length is 2.75 Å. The Sr(2)-O(9) bond length is 2.77 Å. There is one shorter (2.77 Å) and one longer (2.78 Å) Sr(2)-O(1) bond length. There is one shorter (2.77 Å) and one longer (2.83 Å) Sr(2)-O(6) bond length. There is one shorter (2.70 Å) and one longer (2.79 Å) Sr(2)-O(7) bond length. La(1) is bonded to two equivalent O(1), two equivalent O(2), 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 two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with six equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, faces with two equivalent Co(2)O6 octahedra, and faces with four equivalent Co(1)O6 octahedra. Both La(1)-O(1) bond lengths are 2.77 Å. Both La(1)-O(2) bond lengths are 2.71 Å. Both La(1)-O(5) bond lengths are 2.66 Å. Both La(1)-O(6) bond lengths are 2.71 Å. Both La(1)-O(7) bond lengths are 2.67 Å. Both La(1)-O(8) bond lengths are 2.74 Å. Fe(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Co(1)O6 octahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-6°. The Fe(1)-O(2) bond length is 2.05 Å. The Fe(1)-O(3) bond length is 1.92 Å. The Fe(1)-O(4) bond length is 1.94 Å. The Fe(1)-O(5) bond length is 1.93 Å. The Fe(1)-O(7) bond length is 1.99 Å. The Fe(1)-O(9) bond length is 1.96 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(8), and one O(9) atom to form CoO6 octahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-6°. The Co(1)-O(1) bond length is 1.79 Å. The Co(1)-O(2) bond length is 1.82 Å. The Co(1)-O(5) bond length is 1.97 Å. The Co(1)-O(6) bond length is 2.11 Å. The Co(1)-O(8) bond length is 1.98 Å. The Co(1)-O(9) bond length is 1.97 Å. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms to form CoO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 2-6°. Both Co(2)-O(1) bond lengths are 2.06 Å. Both Co(2)-O(6) bond lengths are 1.81 Å. Both Co(2)-O(7) bond lengths are 1.97 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), two equivalent Sr(2), one La(1), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one La(1), one Fe(1), and one Co(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Fe(1) atoms. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Fe(1) atoms to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(8)Sr2La2Co2 octahedra, corners with two equivalent O(7)Sr3LaFeCo octahedra, corners with four equivalent O(5)Sr3LaFeCo octahedra, corners with four equivalent O(9)Sr4FeCo octahedra, edges with two equivalent O(5)Sr3LaFeCo octahedra, faces with two equivalent O(7)Sr3LaFeCo octahedra, and faces with two equivalent O(9)Sr4FeCo octahedra. The corner-sharing octahedral tilt angles range from 3-61°. In the fifth O site, O(5) is bonded to one Sr(2), two equivalent Sr(1), one La(1), one Fe(1), and one Co(1) atom to form distorted OSr3LaFeCo octahedra that share  a cornercorner with one O(8)Sr2La2Co2 octahedra,  a cornercorner with one O(5)Sr3LaFeCo octahedra, corners with two equivalent O(4)Sr4Fe2 octahedra, corners with three equivalent O(9)Sr4FeCo octahedra, corners with four equivalent O(7)Sr3LaFeCo octahedra,  an edgeedge with one O(5)Sr3LaFeCo octahedra,  an edgeedge with one O(4)Sr4Fe2 octahedra,  a faceface with one O(8)Sr2La2Co2 octahedra,  a faceface with one O(7)Sr3LaFeCo octahedra, and faces with two equivalent O(9)Sr4FeCo octahedra. The corner-sharing octahedral tilt angles range from 0-63°. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(1), two equivalent Sr(2), one La(1), one Co(1), and one Co(2) atom. In the seventh O site, O(7) is bonded to one Sr(1), two equivalent Sr(2), one La(1), one Fe(1), and one Co(2) atom to form distorted OSr3LaFeCo octahedra that share  a cornercorner with one O(4)Sr4Fe2 octahedra, corners with two equivalent O(9)Sr4FeCo octahedra, corners with four equivalent O(5)Sr3LaFeCo octahedra, corners with four equivalent O(7)Sr3LaFeCo octahedra, edges with two equivalent O(8)Sr2La2Co2 octahedra, edges with two equivalent O(9)Sr4FeCo octahedra,  a faceface with one O(5)Sr3LaFeCo octahedra, and  a faceface with one O(4)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the eighth O site, O(8) is bonded to two equivalent Sr(2), two equivalent La(1), and two equivalent Co(1) atoms to form distorted OSr2La2Co2 octahedra that share corners with two equivalent O(8)Sr2La2Co2 octahedra, corners with two equivalent O(5)Sr3LaFeCo octahedra, corners with two equivalent O(4)Sr4Fe2 octahedra, corners with four equivalent O(9)Sr4FeCo octahedra, edges with four equivalent O(7)Sr3LaFeCo octahedra, and faces with two equivalent O(5)Sr3LaFeCo octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the ninth O site, O(9) is bonded to one Sr(2), three equivalent Sr(1), one Fe(1), and one Co(1) atom to form distorted OSr4FeCo octahedra that share corners with two equivalent O(8)Sr2La2Co2 octahedra, corners with two equivalent O(7)Sr3LaFeCo octahedra, corners with two equivalent O(4)Sr4Fe2 octahedra, corners with two equivalent O(9)Sr4FeCo octahedra, corners with three equivalent O(5)Sr3LaFeCo octahedra, edges with two equivalent O(7)Sr3LaFeCo octahedra, edges with two equivalent O(9)Sr4FeCo octahedra,  a faceface with one O(4)Sr4Fe2 octahedra, and faces with two equivalent O(5)Sr3LaFeCo octahedra. The corner-sharing octahedral tilt angles range from 1-63°.