Li6Fe3Co3O16 is Spinel-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form distorted LiO6 octahedra that share corners with two equivalent Co(2)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, corners with three equivalent Li(6)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. In the second Li site, Li(2) is bonded to one O(12), one O(3), and two equivalent O(9) atoms to form LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, corners with three equivalent Li(5)O6 octahedra, and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-72°. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(5), one O(7), and two equivalent O(11) atoms. In the fourth Li site, Li(4) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. In the fifth Li site, Li(5) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form distorted LiO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, and edges with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-55°. In the sixth Li site, Li(6) is bonded to one O(10), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with three equivalent Li(1)O6 octahedra, and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-73°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(5)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one Li(1)O6 octahedra, and edges with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form CoO6 octahedra that share corners with two equivalent Li(5)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one Li(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. In the second Co site, Co(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form CoO6 octahedra that share corners with two equivalent Li(1)O6 octahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(4), one Fe(2), and one Co(2) atom to form OLi2FeCo trigonal pyramids that share  a cornercorner with one O(2)Li2Co2 tetrahedra,  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(6)Li2FeCo tetrahedra, corners with three equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(1)Li2FeCo trigonal pyramid,  a cornercorner with one O(4)LiFeCo2 trigonal pyramid,  an edgeedge with one O(1)Li2FeCo trigonal pyramid, and  an edgeedge with one O(5)LiFe2Co trigonal pyramid. In the second O site, O(2) is bonded to one Li(1), one Li(6), and two equivalent Co(1) atoms to form distorted OLi2Co2 tetrahedra that share corners with two equivalent O(6)Li2FeCo tetrahedra, corners with two equivalent O(7)Li2Co2 trigonal pyramids, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(4)LiFeCo2 trigonal pyramids, edges with two equivalent O(6)Li2FeCo tetrahedra, and  an edgeedge with one O(3)LiFeCo2 trigonal pyramid. In the third O site, O(3) is bonded to one Li(2), one Fe(1), and two equivalent Co(1) atoms to form distorted OLiFeCo2 trigonal pyramids that share  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(9)Li2FeCo tetrahedra, corners with two equivalent O(7)Li2Co2 trigonal pyramids, corners with three equivalent O(4)LiFeCo2 trigonal pyramids, corners with four equivalent O(11)Li2FeCo trigonal pyramids,  an edgeedge with one O(2)Li2Co2 tetrahedra, and edges with two equivalent O(6)Li2FeCo tetrahedra. In the fourth O site, O(4) is bonded to one Li(4), one Fe(1), and two equivalent Co(1) atoms to form distorted OLiFeCo2 trigonal pyramids that share corners with two equivalent O(2)Li2Co2 tetrahedra, corners with four equivalent O(6)Li2FeCo tetrahedra, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with three equivalent O(3)LiFeCo2 trigonal pyramids,  an edgeedge with one O(7)Li2Co2 trigonal pyramid, and edges with two equivalent O(11)Li2FeCo trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(3), two equivalent Fe(2), and one Co(2) atom to form distorted OLiFe2Co trigonal pyramids that share corners with two equivalent O(12)Li2Fe2 tetrahedra, corners with four equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid, corners with two equivalent O(11)Li2FeCo trigonal pyramids, and edges with two equivalent O(1)Li2FeCo trigonal pyramids. In the sixth O site, O(6) is bonded to one Li(1), one Li(6), one Fe(1), and one Co(1) atom to form distorted OLi2FeCo tetrahedra that share  a cornercorner with one O(2)Li2Co2 tetrahedra,  a cornercorner with one O(6)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with two equivalent O(4)LiFeCo2 trigonal pyramids, corners with three equivalent O(11)Li2FeCo trigonal pyramids,  an edgeedge with one O(2)Li2Co2 tetrahedra,  an edgeedge with one O(6)Li2FeCo tetrahedra, and  an edgeedge with one O(3)LiFeCo2 trigonal pyramid. In the seventh O site, O(7) is bonded to one Li(3), one Li(5), and two equivalent Co(1) atoms to form OLi2Co2 trigonal pyramids that share  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(2)Li2Co2 tetrahedra, corners with two equivalent O(6)Li2FeCo tetrahedra, corners with two equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(5)LiFe2Co trigonal pyramid, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(3)LiFeCo2 trigonal pyramids,  an edgeedge with one O(4)LiFeCo2 trigonal pyramid, and edges with two equivalent O(11)Li2FeCo trigonal pyramids. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(1), one Li(4), and two equivalent Fe(2) atoms. In the ninth O site, O(9) is bonded to one Li(2), one Li(5), one Fe(2), and one Co(2) atom to form distorted OLi2FeCo tetrahedra that share  a cornercorner with one O(12)Li2Fe2 tetrahedra,  a cornercorner with one O(9)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid,  a cornercorner with one O(3)LiFeCo2 trigonal pyramid, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(5)LiFe2Co trigonal pyramids, corners with three equivalent O(1)Li2FeCo trigonal pyramids,  an edgeedge with one O(12)Li2Fe2 tetrahedra, and  an edgeedge with one O(9)Li2FeCo tetrahedra. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(6), two equivalent Fe(2), and one Co(2) atom. In the eleventh O site, O(11) is bonded to one Li(3), one Li(5), one Fe(1), and one Co(1) atom to form OLi2FeCo trigonal pyramids that share  a cornercorner with one O(2)Li2Co2 tetrahedra,  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(9)Li2FeCo tetrahedra, corners with three equivalent O(6)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid,  a cornercorner with one O(11)Li2FeCo trigonal pyramid,  a cornercorner with one O(5)LiFe2Co trigonal pyramid, corners with two equivalent O(3)LiFeCo2 trigonal pyramids,  an edgeedge with one O(7)Li2Co2 trigonal pyramid,  an edgeedge with one O(11)Li2FeCo trigonal pyramid, and  an edgeedge with one O(4)LiFeCo2 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Li(2), one Li(5), and two equivalent Fe(2) atoms to form distorted OLi2Fe2 tetrahedra that share corners with two equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid,  a cornercorner with one O(3)LiFeCo2 trigonal pyramid, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(5)LiFe2Co trigonal pyramids, and edges with two equivalent O(9)Li2FeCo tetrahedra.
Li6Fe3Co3O16 is Spinel-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form distorted LiO6 octahedra that share corners with two equivalent Co(2)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, corners with three equivalent Li(6)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. The Li(1)-O(2) bond length is 2.40 Å. The Li(1)-O(8) bond length is 2.08 Å. Both Li(1)-O(1) bond lengths are 2.10 Å. Both Li(1)-O(6) bond lengths are 2.33 Å. In the second Li site, Li(2) is bonded to one O(12), one O(3), and two equivalent O(9) atoms to form LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, corners with three equivalent Li(5)O6 octahedra, and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-72°. The Li(2)-O(12) bond length is 1.94 Å. The Li(2)-O(3) bond length is 2.16 Å. Both Li(2)-O(9) bond lengths are 1.96 Å. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(5), one O(7), and two equivalent O(11) atoms. The Li(3)-O(5) bond length is 1.81 Å. The Li(3)-O(7) bond length is 1.90 Å. Both Li(3)-O(11) bond lengths are 1.94 Å. In the fourth Li site, Li(4) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. The Li(4)-O(4) bond length is 1.82 Å. The Li(4)-O(8) bond length is 1.93 Å. Both Li(4)-O(1) bond lengths are 1.91 Å. In the fifth Li site, Li(5) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form distorted LiO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, and edges with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-55°. The Li(5)-O(12) bond length is 2.31 Å. The Li(5)-O(7) bond length is 2.09 Å. Both Li(5)-O(11) bond lengths are 2.11 Å. Both Li(5)-O(9) bond lengths are 2.36 Å. In the sixth Li site, Li(6) is bonded to one O(10), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with three equivalent Li(1)O6 octahedra, and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-73°. The Li(6)-O(10) bond length is 2.09 Å. The Li(6)-O(2) bond length is 1.97 Å. Both Li(6)-O(6) bond lengths are 1.96 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(5)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one Li(1)O6 octahedra, and edges with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. The Fe(1)-O(3) bond length is 1.97 Å. The Fe(1)-O(4) bond length is 1.97 Å. Both Fe(1)-O(11) bond lengths are 1.91 Å. Both Fe(1)-O(6) bond lengths are 1.89 Å. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. The Fe(2)-O(1) bond length is 1.92 Å. The Fe(2)-O(10) bond length is 2.00 Å. The Fe(2)-O(12) bond length is 1.90 Å. The Fe(2)-O(5) bond length is 1.98 Å. The Fe(2)-O(8) bond length is 1.92 Å. The Fe(2)-O(9) bond length is 1.88 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form CoO6 octahedra that share corners with two equivalent Li(5)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one Li(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. The Co(1)-O(11) bond length is 1.87 Å. The Co(1)-O(2) bond length is 1.86 Å. The Co(1)-O(3) bond length is 1.94 Å. The Co(1)-O(4) bond length is 1.92 Å. The Co(1)-O(6) bond length is 1.86 Å. The Co(1)-O(7) bond length is 1.88 Å. In the second Co site, Co(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form CoO6 octahedra that share corners with two equivalent Li(1)O6 octahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. The Co(2)-O(10) bond length is 1.93 Å. The Co(2)-O(5) bond length is 1.90 Å. Both Co(2)-O(1) bond lengths are 1.88 Å. Both Co(2)-O(9) bond lengths are 1.87 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(4), one Fe(2), and one Co(2) atom to form OLi2FeCo trigonal pyramids that share  a cornercorner with one O(2)Li2Co2 tetrahedra,  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(6)Li2FeCo tetrahedra, corners with three equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(1)Li2FeCo trigonal pyramid,  a cornercorner with one O(4)LiFeCo2 trigonal pyramid,  an edgeedge with one O(1)Li2FeCo trigonal pyramid, and  an edgeedge with one O(5)LiFe2Co trigonal pyramid. In the second O site, O(2) is bonded to one Li(1), one Li(6), and two equivalent Co(1) atoms to form distorted OLi2Co2 tetrahedra that share corners with two equivalent O(6)Li2FeCo tetrahedra, corners with two equivalent O(7)Li2Co2 trigonal pyramids, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(4)LiFeCo2 trigonal pyramids, edges with two equivalent O(6)Li2FeCo tetrahedra, and  an edgeedge with one O(3)LiFeCo2 trigonal pyramid. In the third O site, O(3) is bonded to one Li(2), one Fe(1), and two equivalent Co(1) atoms to form distorted OLiFeCo2 trigonal pyramids that share  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(9)Li2FeCo tetrahedra, corners with two equivalent O(7)Li2Co2 trigonal pyramids, corners with three equivalent O(4)LiFeCo2 trigonal pyramids, corners with four equivalent O(11)Li2FeCo trigonal pyramids,  an edgeedge with one O(2)Li2Co2 tetrahedra, and edges with two equivalent O(6)Li2FeCo tetrahedra. In the fourth O site, O(4) is bonded to one Li(4), one Fe(1), and two equivalent Co(1) atoms to form distorted OLiFeCo2 trigonal pyramids that share corners with two equivalent O(2)Li2Co2 tetrahedra, corners with four equivalent O(6)Li2FeCo tetrahedra, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with three equivalent O(3)LiFeCo2 trigonal pyramids,  an edgeedge with one O(7)Li2Co2 trigonal pyramid, and edges with two equivalent O(11)Li2FeCo trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(3), two equivalent Fe(2), and one Co(2) atom to form distorted OLiFe2Co trigonal pyramids that share corners with two equivalent O(12)Li2Fe2 tetrahedra, corners with four equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid, corners with two equivalent O(11)Li2FeCo trigonal pyramids, and edges with two equivalent O(1)Li2FeCo trigonal pyramids. In the sixth O site, O(6) is bonded to one Li(1), one Li(6), one Fe(1), and one Co(1) atom to form distorted OLi2FeCo tetrahedra that share  a cornercorner with one O(2)Li2Co2 tetrahedra,  a cornercorner with one O(6)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with two equivalent O(4)LiFeCo2 trigonal pyramids, corners with three equivalent O(11)Li2FeCo trigonal pyramids,  an edgeedge with one O(2)Li2Co2 tetrahedra,  an edgeedge with one O(6)Li2FeCo tetrahedra, and  an edgeedge with one O(3)LiFeCo2 trigonal pyramid. In the seventh O site, O(7) is bonded to one Li(3), one Li(5), and two equivalent Co(1) atoms to form OLi2Co2 trigonal pyramids that share  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(2)Li2Co2 tetrahedra, corners with two equivalent O(6)Li2FeCo tetrahedra, corners with two equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(5)LiFe2Co trigonal pyramid, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(3)LiFeCo2 trigonal pyramids,  an edgeedge with one O(4)LiFeCo2 trigonal pyramid, and edges with two equivalent O(11)Li2FeCo trigonal pyramids. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(1), one Li(4), and two equivalent Fe(2) atoms. In the ninth O site, O(9) is bonded to one Li(2), one Li(5), one Fe(2), and one Co(2) atom to form distorted OLi2FeCo tetrahedra that share  a cornercorner with one O(12)Li2Fe2 tetrahedra,  a cornercorner with one O(9)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid,  a cornercorner with one O(3)LiFeCo2 trigonal pyramid, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(5)LiFe2Co trigonal pyramids, corners with three equivalent O(1)Li2FeCo trigonal pyramids,  an edgeedge with one O(12)Li2Fe2 tetrahedra, and  an edgeedge with one O(9)Li2FeCo tetrahedra. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(6), two equivalent Fe(2), and one Co(2) atom. In the eleventh O site, O(11) is bonded to one Li(3), one Li(5), one Fe(1), and one Co(1) atom to form OLi2FeCo trigonal pyramids that share  a cornercorner with one O(2)Li2Co2 tetrahedra,  a cornercorner with one O(12)Li2Fe2 tetrahedra, corners with two equivalent O(9)Li2FeCo tetrahedra, corners with three equivalent O(6)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid,  a cornercorner with one O(11)Li2FeCo trigonal pyramid,  a cornercorner with one O(5)LiFe2Co trigonal pyramid, corners with two equivalent O(3)LiFeCo2 trigonal pyramids,  an edgeedge with one O(7)Li2Co2 trigonal pyramid,  an edgeedge with one O(11)Li2FeCo trigonal pyramid, and  an edgeedge with one O(4)LiFeCo2 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Li(2), one Li(5), and two equivalent Fe(2) atoms to form distorted OLi2Fe2 tetrahedra that share corners with two equivalent O(9)Li2FeCo tetrahedra,  a cornercorner with one O(7)Li2Co2 trigonal pyramid,  a cornercorner with one O(3)LiFeCo2 trigonal pyramid, corners with two equivalent O(1)Li2FeCo trigonal pyramids, corners with two equivalent O(11)Li2FeCo trigonal pyramids, corners with two equivalent O(5)LiFe2Co trigonal pyramids, and edges with two equivalent O(9)Li2FeCo tetrahedra.