Li8FeCo9O20 crystallizes in the triclinic P-1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form LiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(5)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(9) atom to form LiO6 octahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one Co(5)O6 octahedra, corners with two equivalent Co(2)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Co(4)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-12°. In the third Li site, Li(3) is bonded to one O(10), one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form LiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra, corners with two equivalent Co(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. In the fourth Li site, Li(4) is bonded to one O(10), one O(4), one O(6), one O(7), one O(8), and one O(9) atom to form LiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one Co(5)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-11°. Fe(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(7), one O(9), two equivalent O(1), and two equivalent O(3) atoms to form CoO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with three equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-11°. In the second Co site, Co(2) is bonded to one O(4), one O(5), one O(6), one O(8), and two equivalent O(2) atoms to form CoO6 octahedra that share  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Li(4)O6 octahedra, corners with two equivalent Li(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with three equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-12°. In the third Co site, Co(3) is bonded to one O(1), one O(3), one O(7), one O(9), and two equivalent O(10) atoms to form CoO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Co(5)O6 octahedra, and edges with three equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. In the fourth Co site, Co(4) is bonded to one O(4), one O(5), two equivalent O(6), and two equivalent O(8) atoms to form CoO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Li(4)O6 octahedra, corners with two equivalent Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-12°. In the fifth Co site, Co(5) is bonded to two equivalent O(10), two equivalent O(7), and two equivalent O(9) atoms to form CoO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with four equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-10°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Co(3), and two equivalent Co(1) atoms to form OLi2Co3 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(10)Li2Co3 square pyramids, corners with two equivalent O(7)Li2Co3 square pyramids, corners with two equivalent O(2)Li2FeCo2 square pyramids,  an edgeedge with one O(5)Li3FeCo2 octahedra, edges with two equivalent O(9)Li3Co3 octahedra, edges with three equivalent O(3)Li3Co3 octahedra,  an edgeedge with one O(1)Li2Co3 square pyramid, and  an edgeedge with one O(7)Li2Co3 square pyramid. The corner-sharing octahedral tilt angles range from 2-4°. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Fe(1), and two equivalent Co(2) atoms to form OLi2FeCo2 square pyramids that share  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(1)Li2Co3 square pyramids, corners with two equivalent O(8)Li2Co3 square pyramids,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra, edges with three equivalent O(5)Li3FeCo2 octahedra,  an edgeedge with one O(2)Li2FeCo2 square pyramid, and edges with two equivalent O(4)Li2FeCo2 square pyramids. The corner-sharing octahedral tilt angles range from 2-5°. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Li(3), one Co(3), and two equivalent Co(1) atoms to form OLi3Co3 octahedra that share  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(1)Li2Co3 square pyramid,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(8)Li2Co3 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(5)Li3FeCo2 octahedra, edges with two equivalent O(9)Li3Co3 octahedra,  an edgeedge with one O(10)Li2Co3 square pyramid,  an edgeedge with one O(2)Li2FeCo2 square pyramid, edges with two equivalent O(7)Li2Co3 square pyramids, and edges with three equivalent O(1)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 1-4°. In the fourth O site, O(4) is bonded to one Li(1), one Li(4), one Fe(1), one Co(2), and one Co(4) atom to form OLi2FeCo2 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(1)Li2Co3 square pyramid,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(8)Li2Co3 square pyramids, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(5)Li3FeCo2 octahedra,  an edgeedge with one O(7)Li2Co3 square pyramid,  an edgeedge with one O(8)Li2Co3 square pyramid, and edges with two equivalent O(2)Li2FeCo2 square pyramids. The corner-sharing octahedral tilt angles range from 1-5°. In the fifth O site, O(5) is bonded to one Li(1), one Li(2), one Li(3), one Fe(1), one Co(2), and one Co(4) atom to form OLi3FeCo2 octahedra that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(9)Li3Co3 octahedra, edges with two equivalent O(6)Li3Co3 octahedra,  an edgeedge with one O(1)Li2Co3 square pyramid, edges with two equivalent O(8)Li2Co3 square pyramids, edges with two equivalent O(4)Li2FeCo2 square pyramids, and edges with three equivalent O(2)Li2FeCo2 square pyramids. The corner-sharing octahedral tilt angles range from 0-4°. In the sixth O site, O(6) is bonded to one Li(2), one Li(3), one Li(4), one Co(2), and two equivalent Co(4) atoms to form OLi3Co3 octahedra that share  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(1)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(8)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(9)Li3Co3 octahedra, edges with two equivalent O(5)Li3FeCo2 octahedra,  an edgeedge with one O(10)Li2Co3 square pyramid,  an edgeedge with one O(2)Li2FeCo2 square pyramid, edges with two equivalent O(4)Li2FeCo2 square pyramids, and edges with three equivalent O(8)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 1-5°. In the seventh O site, O(7) is bonded to one Li(1), one Li(4), one Co(1), one Co(3), and one Co(5) atom to form OLi2Co3 square pyramids that share  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(8)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid, corners with two equivalent O(1)Li2Co3 square pyramids, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(9)Li3Co3 octahedra,  an edgeedge with one O(1)Li2Co3 square pyramid,  an edgeedge with one O(4)Li2FeCo2 square pyramid, and edges with two equivalent O(10)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 1-3°. In the eighth O site, O(8) is bonded to one Li(3), one Li(4), one Co(2), and two equivalent Co(4) atoms to form OLi2Co3 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(7)Li2Co3 square pyramid, corners with two equivalent O(10)Li2Co3 square pyramids, corners with two equivalent O(2)Li2FeCo2 square pyramids, corners with two equivalent O(4)Li2FeCo2 square pyramids,  an edgeedge with one O(9)Li3Co3 octahedra, edges with two equivalent O(5)Li3FeCo2 octahedra, edges with three equivalent O(6)Li3Co3 octahedra,  an edgeedge with one O(8)Li2Co3 square pyramid, and  an edgeedge with one O(4)Li2FeCo2 square pyramid. The corner-sharing octahedral tilt angles range from 2-5°. In the ninth O site, O(9) is bonded to one Li(2), one Li(3), one Li(4), one Co(1), one Co(3), and one Co(5) atom to form OLi3Co3 octahedra that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(5)Li3FeCo2 octahedra, edges with two equivalent O(3)Li3Co3 octahedra,  an edgeedge with one O(8)Li2Co3 square pyramid, edges with two equivalent O(1)Li2Co3 square pyramids, edges with two equivalent O(7)Li2Co3 square pyramids, and edges with three equivalent O(10)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 0-5°. In the tenth O site, O(10) is bonded to one Li(3), one Li(4), one Co(5), and two equivalent Co(3) atoms to form OLi2Co3 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(1)Li2Co3 square pyramids, corners with two equivalent O(8)Li2Co3 square pyramids,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra, edges with three equivalent O(9)Li3Co3 octahedra,  an edgeedge with one O(10)Li2Co3 square pyramid, and edges with two equivalent O(7)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 3-5°.
Li8FeCo9O20 crystallizes in the triclinic P-1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form LiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(5)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. The Li(1)-O(1) bond length is 2.12 Å. The Li(1)-O(2) bond length is 2.14 Å. The Li(1)-O(3) bond length is 2.15 Å. The Li(1)-O(4) bond length is 2.08 Å. The Li(1)-O(5) bond length is 2.20 Å. The Li(1)-O(7) bond length is 2.06 Å. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(9) atom to form LiO6 octahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one Co(5)O6 octahedra, corners with two equivalent Co(2)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Co(4)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-12°. The Li(2)-O(1) bond length is 2.07 Å. The Li(2)-O(2) bond length is 2.09 Å. The Li(2)-O(3) bond length is 2.10 Å. The Li(2)-O(5) bond length is 2.12 Å. The Li(2)-O(6) bond length is 2.20 Å. The Li(2)-O(9) bond length is 2.17 Å. In the third Li site, Li(3) is bonded to one O(10), one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form LiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra, corners with two equivalent Co(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. The Li(3)-O(10) bond length is 2.08 Å. The Li(3)-O(3) bond length is 2.19 Å. The Li(3)-O(5) bond length is 2.21 Å. The Li(3)-O(6) bond length is 2.13 Å. The Li(3)-O(8) bond length is 2.07 Å. The Li(3)-O(9) bond length is 2.12 Å. In the fourth Li site, Li(4) is bonded to one O(10), one O(4), one O(6), one O(7), one O(8), and one O(9) atom to form LiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one Co(5)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-11°. The Li(4)-O(10) bond length is 2.14 Å. The Li(4)-O(4) bond length is 2.10 Å. The Li(4)-O(6) bond length is 2.18 Å. The Li(4)-O(7) bond length is 2.06 Å. The Li(4)-O(8) bond length is 2.14 Å. The Li(4)-O(9) bond length is 2.16 Å. Fe(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. Both Fe(1)-O(2) bond lengths are 1.94 Å. Both Fe(1)-O(4) bond lengths are 1.95 Å. Both Fe(1)-O(5) bond lengths are 1.92 Å. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(7), one O(9), two equivalent O(1), and two equivalent O(3) atoms to form CoO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with three equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-11°. The Co(1)-O(7) bond length is 1.94 Å. The Co(1)-O(9) bond length is 1.94 Å. There is one shorter (1.90 Å) and one longer (1.92 Å) Co(1)-O(1) bond length. There is one shorter (1.93 Å) and one longer (1.95 Å) Co(1)-O(3) bond length. In the second Co site, Co(2) is bonded to one O(4), one O(5), one O(6), one O(8), and two equivalent O(2) atoms to form CoO6 octahedra that share  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Li(4)O6 octahedra, corners with two equivalent Li(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with three equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-12°. The Co(2)-O(4) bond length is 1.89 Å. The Co(2)-O(5) bond length is 1.95 Å. The Co(2)-O(6) bond length is 1.94 Å. The Co(2)-O(8) bond length is 1.93 Å. There is one shorter (1.91 Å) and one longer (1.95 Å) Co(2)-O(2) bond length. In the third Co site, Co(3) is bonded to one O(1), one O(3), one O(7), one O(9), and two equivalent O(10) atoms to form CoO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Co(5)O6 octahedra, and edges with three equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. The Co(3)-O(1) bond length is 1.92 Å. The Co(3)-O(3) bond length is 1.94 Å. The Co(3)-O(7) bond length is 1.89 Å. The Co(3)-O(9) bond length is 1.93 Å. There is one shorter (1.90 Å) and one longer (1.91 Å) Co(3)-O(10) bond length. In the fourth Co site, Co(4) is bonded to one O(4), one O(5), two equivalent O(6), and two equivalent O(8) atoms to form CoO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Li(4)O6 octahedra, corners with two equivalent Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-12°. The Co(4)-O(4) bond length is 1.95 Å. The Co(4)-O(5) bond length is 1.96 Å. There is one shorter (1.92 Å) and one longer (1.95 Å) Co(4)-O(6) bond length. There is one shorter (1.90 Å) and one longer (1.92 Å) Co(4)-O(8) bond length. In the fifth Co site, Co(5) is bonded to two equivalent O(10), two equivalent O(7), and two equivalent O(9) atoms to form CoO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with four equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-10°. Both Co(5)-O(10) bond lengths are 1.92 Å. Both Co(5)-O(7) bond lengths are 1.93 Å. Both Co(5)-O(9) bond lengths are 1.93 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Co(3), and two equivalent Co(1) atoms to form OLi2Co3 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(10)Li2Co3 square pyramids, corners with two equivalent O(7)Li2Co3 square pyramids, corners with two equivalent O(2)Li2FeCo2 square pyramids,  an edgeedge with one O(5)Li3FeCo2 octahedra, edges with two equivalent O(9)Li3Co3 octahedra, edges with three equivalent O(3)Li3Co3 octahedra,  an edgeedge with one O(1)Li2Co3 square pyramid, and  an edgeedge with one O(7)Li2Co3 square pyramid. The corner-sharing octahedral tilt angles range from 2-4°. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Fe(1), and two equivalent Co(2) atoms to form OLi2FeCo2 square pyramids that share  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(1)Li2Co3 square pyramids, corners with two equivalent O(8)Li2Co3 square pyramids,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra, edges with three equivalent O(5)Li3FeCo2 octahedra,  an edgeedge with one O(2)Li2FeCo2 square pyramid, and edges with two equivalent O(4)Li2FeCo2 square pyramids. The corner-sharing octahedral tilt angles range from 2-5°. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Li(3), one Co(3), and two equivalent Co(1) atoms to form OLi3Co3 octahedra that share  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(1)Li2Co3 square pyramid,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(8)Li2Co3 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(5)Li3FeCo2 octahedra, edges with two equivalent O(9)Li3Co3 octahedra,  an edgeedge with one O(10)Li2Co3 square pyramid,  an edgeedge with one O(2)Li2FeCo2 square pyramid, edges with two equivalent O(7)Li2Co3 square pyramids, and edges with three equivalent O(1)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 1-4°. In the fourth O site, O(4) is bonded to one Li(1), one Li(4), one Fe(1), one Co(2), and one Co(4) atom to form OLi2FeCo2 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(1)Li2Co3 square pyramid,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(8)Li2Co3 square pyramids, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(5)Li3FeCo2 octahedra,  an edgeedge with one O(7)Li2Co3 square pyramid,  an edgeedge with one O(8)Li2Co3 square pyramid, and edges with two equivalent O(2)Li2FeCo2 square pyramids. The corner-sharing octahedral tilt angles range from 1-5°. In the fifth O site, O(5) is bonded to one Li(1), one Li(2), one Li(3), one Fe(1), one Co(2), and one Co(4) atom to form OLi3FeCo2 octahedra that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(9)Li3Co3 octahedra, edges with two equivalent O(6)Li3Co3 octahedra,  an edgeedge with one O(1)Li2Co3 square pyramid, edges with two equivalent O(8)Li2Co3 square pyramids, edges with two equivalent O(4)Li2FeCo2 square pyramids, and edges with three equivalent O(2)Li2FeCo2 square pyramids. The corner-sharing octahedral tilt angles range from 0-4°. In the sixth O site, O(6) is bonded to one Li(2), one Li(3), one Li(4), one Co(2), and two equivalent Co(4) atoms to form OLi3Co3 octahedra that share  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(1)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(8)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(9)Li3Co3 octahedra, edges with two equivalent O(5)Li3FeCo2 octahedra,  an edgeedge with one O(10)Li2Co3 square pyramid,  an edgeedge with one O(2)Li2FeCo2 square pyramid, edges with two equivalent O(4)Li2FeCo2 square pyramids, and edges with three equivalent O(8)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 1-5°. In the seventh O site, O(7) is bonded to one Li(1), one Li(4), one Co(1), one Co(3), and one Co(5) atom to form OLi2Co3 square pyramids that share  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(8)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid, corners with two equivalent O(1)Li2Co3 square pyramids, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(9)Li3Co3 octahedra,  an edgeedge with one O(1)Li2Co3 square pyramid,  an edgeedge with one O(4)Li2FeCo2 square pyramid, and edges with two equivalent O(10)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 1-3°. In the eighth O site, O(8) is bonded to one Li(3), one Li(4), one Co(2), and two equivalent Co(4) atoms to form OLi2Co3 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(7)Li2Co3 square pyramid, corners with two equivalent O(10)Li2Co3 square pyramids, corners with two equivalent O(2)Li2FeCo2 square pyramids, corners with two equivalent O(4)Li2FeCo2 square pyramids,  an edgeedge with one O(9)Li3Co3 octahedra, edges with two equivalent O(5)Li3FeCo2 octahedra, edges with three equivalent O(6)Li3Co3 octahedra,  an edgeedge with one O(8)Li2Co3 square pyramid, and  an edgeedge with one O(4)Li2FeCo2 square pyramid. The corner-sharing octahedral tilt angles range from 2-5°. In the ninth O site, O(9) is bonded to one Li(2), one Li(3), one Li(4), one Co(1), one Co(3), and one Co(5) atom to form OLi3Co3 octahedra that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(6)Li3Co3 octahedra,  a cornercorner with one O(9)Li3Co3 octahedra,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(2)Li2FeCo2 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(5)Li3FeCo2 octahedra, edges with two equivalent O(3)Li3Co3 octahedra,  an edgeedge with one O(8)Li2Co3 square pyramid, edges with two equivalent O(1)Li2Co3 square pyramids, edges with two equivalent O(7)Li2Co3 square pyramids, and edges with three equivalent O(10)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 0-5°. In the tenth O site, O(10) is bonded to one Li(3), one Li(4), one Co(5), and two equivalent Co(3) atoms to form OLi2Co3 square pyramids that share  a cornercorner with one O(3)Li3Co3 octahedra,  a cornercorner with one O(5)Li3FeCo2 octahedra,  a cornercorner with one O(10)Li2Co3 square pyramid,  a cornercorner with one O(7)Li2Co3 square pyramid,  a cornercorner with one O(4)Li2FeCo2 square pyramid, corners with two equivalent O(1)Li2Co3 square pyramids, corners with two equivalent O(8)Li2Co3 square pyramids,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra, edges with three equivalent O(9)Li3Co3 octahedra,  an edgeedge with one O(10)Li2Co3 square pyramid, and edges with two equivalent O(7)Li2Co3 square pyramids. The corner-sharing octahedral tilt angles range from 3-5°.