Li2Mn5(FeO6)2 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-17°. In the second Li site, Li(2) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(2)O6 octahedra, and edges with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-13°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(4)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-13°. In the second Mn site, Mn(2) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-17°. In the third Mn site, Mn(3) is bonded to one O(1), one O(10), one O(2), one O(7), one O(8), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-15°. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-12°. In the fifth Mn site, Mn(5) is bonded to one O(11), one O(12), one O(3), one O(4), one O(5), and one O(6) atom to form MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, and  an edgeedge with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-16°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-15°. In the second Fe site, Fe(2) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-16°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Fe(1) atom to form OLi2Mn2Fe square pyramids that share  a cornercorner with one O(8)Li2Mn2Fe square pyramid,  a cornercorner with one O(11)LiMn3Fe square pyramid, corners with two equivalent O(12)Li2Mn2Fe square pyramids, corners with two equivalent O(2)LiMn3Fe square pyramids,  an edgeedge with one O(12)Li2Mn2Fe square pyramid,  an edgeedge with one O(10)LiMn3Fe square pyramid, and edges with two equivalent O(8)Li2Mn2Fe square pyramids. In the second O site, O(2) is bonded to one Li(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom to form distorted OLiMn3Fe square pyramids that share  a cornercorner with one O(12)Li2Mn2Fe square pyramid,  a cornercorner with one O(10)LiMn3Fe square pyramid, corners with two equivalent O(1)Li2Mn2Fe square pyramids, corners with two equivalent O(11)LiMn3Fe square pyramids,  an edgeedge with one O(8)Li2Mn2Fe square pyramid,  an edgeedge with one O(11)LiMn3Fe square pyramid, and edges with two equivalent O(10)LiMn3Fe square pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(4), one Mn(5), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(2), one Mn(5), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Mn(1), one Mn(4), one Mn(5), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(5), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Fe(1) atom. In the eighth O site, O(8) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Fe(1) atom to form OLi2Mn2Fe square pyramids that share  a cornercorner with one O(1)Li2Mn2Fe square pyramid,  a cornercorner with one O(11)LiMn3Fe square pyramid, corners with two equivalent O(10)LiMn3Fe square pyramids,  an edgeedge with one O(2)LiMn3Fe square pyramid, edges with two equivalent O(1)Li2Mn2Fe square pyramids, and edges with two equivalent O(12)Li2Mn2Fe square pyramids. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom. In the tenth O site, O(10) is bonded to one Li(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom to form OLiMn3Fe square pyramids that share  a cornercorner with one O(12)Li2Mn2Fe square pyramid,  a cornercorner with one O(2)LiMn3Fe square pyramid, corners with two equivalent O(8)Li2Mn2Fe square pyramids,  an edgeedge with one O(1)Li2Mn2Fe square pyramid, edges with two equivalent O(11)LiMn3Fe square pyramids, and edges with two equivalent O(2)LiMn3Fe square pyramids. In the eleventh O site, O(11) is bonded to one Li(1), one Mn(1), one Mn(4), one Mn(5), and one Fe(2) atom to form OLiMn3Fe square pyramids that share  a cornercorner with one O(1)Li2Mn2Fe square pyramid,  a cornercorner with one O(8)Li2Mn2Fe square pyramid, corners with two equivalent O(2)LiMn3Fe square pyramids,  an edgeedge with one O(12)Li2Mn2Fe square pyramid,  an edgeedge with one O(2)LiMn3Fe square pyramid, and edges with two equivalent O(10)LiMn3Fe square pyramids. In the twelfth O site, O(12) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(5), and one Fe(1) atom to form OLi2Mn2Fe square pyramids that share  a cornercorner with one O(10)LiMn3Fe square pyramid,  a cornercorner with one O(2)LiMn3Fe square pyramid, corners with two equivalent O(1)Li2Mn2Fe square pyramids,  an edgeedge with one O(1)Li2Mn2Fe square pyramid,  an edgeedge with one O(11)LiMn3Fe square pyramid, and edges with two equivalent O(8)Li2Mn2Fe square pyramids.
Li2Mn5(FeO6)2 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-17°. The Li(1)-O(1) bond length is 2.11 Å. The Li(1)-O(10) bond length is 2.37 Å. The Li(1)-O(11) bond length is 2.20 Å. The Li(1)-O(12) bond length is 2.08 Å. The Li(1)-O(2) bond length is 2.22 Å. The Li(1)-O(8) bond length is 2.06 Å. In the second Li site, Li(2) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(2)O6 octahedra, and edges with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-13°. The Li(2)-O(1) bond length is 2.35 Å. The Li(2)-O(12) bond length is 2.01 Å. The Li(2)-O(4) bond length is 2.26 Å. The Li(2)-O(6) bond length is 2.16 Å. The Li(2)-O(7) bond length is 1.98 Å. The Li(2)-O(8) bond length is 2.15 Å. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(4)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-13°. The Mn(1)-O(10) bond length is 2.10 Å. The Mn(1)-O(11) bond length is 2.20 Å. The Mn(1)-O(2) bond length is 1.92 Å. The Mn(1)-O(3) bond length is 2.13 Å. The Mn(1)-O(5) bond length is 1.89 Å. The Mn(1)-O(9) bond length is 2.10 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-17°. The Mn(2)-O(1) bond length is 1.98 Å. The Mn(2)-O(12) bond length is 1.96 Å. The Mn(2)-O(4) bond length is 1.97 Å. The Mn(2)-O(6) bond length is 1.93 Å. The Mn(2)-O(7) bond length is 1.93 Å. The Mn(2)-O(8) bond length is 1.97 Å. In the third Mn site, Mn(3) is bonded to one O(1), one O(10), one O(2), one O(7), one O(8), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-15°. The Mn(3)-O(1) bond length is 1.98 Å. The Mn(3)-O(10) bond length is 2.00 Å. The Mn(3)-O(2) bond length is 2.53 Å. The Mn(3)-O(7) bond length is 2.17 Å. The Mn(3)-O(8) bond length is 1.94 Å. The Mn(3)-O(9) bond length is 2.05 Å. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-12°. The Mn(4)-O(10) bond length is 1.99 Å. The Mn(4)-O(11) bond length is 1.92 Å. The Mn(4)-O(2) bond length is 1.96 Å. The Mn(4)-O(3) bond length is 1.96 Å. The Mn(4)-O(5) bond length is 1.97 Å. The Mn(4)-O(9) bond length is 1.91 Å. In the fifth Mn site, Mn(5) is bonded to one O(11), one O(12), one O(3), one O(4), one O(5), and one O(6) atom to form MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, and  an edgeedge with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-16°. The Mn(5)-O(11) bond length is 2.03 Å. The Mn(5)-O(12) bond length is 2.26 Å. The Mn(5)-O(3) bond length is 1.99 Å. The Mn(5)-O(4) bond length is 1.94 Å. The Mn(5)-O(5) bond length is 2.39 Å. The Mn(5)-O(6) bond length is 1.96 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-15°. The Fe(1)-O(1) bond length is 2.06 Å. The Fe(1)-O(12) bond length is 1.97 Å. The Fe(1)-O(4) bond length is 2.00 Å. The Fe(1)-O(6) bond length is 2.04 Å. The Fe(1)-O(7) bond length is 1.95 Å. The Fe(1)-O(8) bond length is 2.33 Å. In the second Fe site, Fe(2) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-16°. The Fe(2)-O(10) bond length is 2.29 Å. The Fe(2)-O(11) bond length is 2.14 Å. The Fe(2)-O(2) bond length is 2.12 Å. The Fe(2)-O(3) bond length is 2.09 Å. The Fe(2)-O(5) bond length is 2.07 Å. The Fe(2)-O(9) bond length is 2.14 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Fe(1) atom to form OLi2Mn2Fe square pyramids that share  a cornercorner with one O(8)Li2Mn2Fe square pyramid,  a cornercorner with one O(11)LiMn3Fe square pyramid, corners with two equivalent O(12)Li2Mn2Fe square pyramids, corners with two equivalent O(2)LiMn3Fe square pyramids,  an edgeedge with one O(12)Li2Mn2Fe square pyramid,  an edgeedge with one O(10)LiMn3Fe square pyramid, and edges with two equivalent O(8)Li2Mn2Fe square pyramids. In the second O site, O(2) is bonded to one Li(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom to form distorted OLiMn3Fe square pyramids that share  a cornercorner with one O(12)Li2Mn2Fe square pyramid,  a cornercorner with one O(10)LiMn3Fe square pyramid, corners with two equivalent O(1)Li2Mn2Fe square pyramids, corners with two equivalent O(11)LiMn3Fe square pyramids,  an edgeedge with one O(8)Li2Mn2Fe square pyramid,  an edgeedge with one O(11)LiMn3Fe square pyramid, and edges with two equivalent O(10)LiMn3Fe square pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(4), one Mn(5), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(2), one Mn(5), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Mn(1), one Mn(4), one Mn(5), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(5), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Fe(1) atom. In the eighth O site, O(8) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Fe(1) atom to form OLi2Mn2Fe square pyramids that share  a cornercorner with one O(1)Li2Mn2Fe square pyramid,  a cornercorner with one O(11)LiMn3Fe square pyramid, corners with two equivalent O(10)LiMn3Fe square pyramids,  an edgeedge with one O(2)LiMn3Fe square pyramid, edges with two equivalent O(1)Li2Mn2Fe square pyramids, and edges with two equivalent O(12)Li2Mn2Fe square pyramids. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom. In the tenth O site, O(10) is bonded to one Li(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom to form OLiMn3Fe square pyramids that share  a cornercorner with one O(12)Li2Mn2Fe square pyramid,  a cornercorner with one O(2)LiMn3Fe square pyramid, corners with two equivalent O(8)Li2Mn2Fe square pyramids,  an edgeedge with one O(1)Li2Mn2Fe square pyramid, edges with two equivalent O(11)LiMn3Fe square pyramids, and edges with two equivalent O(2)LiMn3Fe square pyramids. In the eleventh O site, O(11) is bonded to one Li(1), one Mn(1), one Mn(4), one Mn(5), and one Fe(2) atom to form OLiMn3Fe square pyramids that share  a cornercorner with one O(1)Li2Mn2Fe square pyramid,  a cornercorner with one O(8)Li2Mn2Fe square pyramid, corners with two equivalent O(2)LiMn3Fe square pyramids,  an edgeedge with one O(12)Li2Mn2Fe square pyramid,  an edgeedge with one O(2)LiMn3Fe square pyramid, and edges with two equivalent O(10)LiMn3Fe square pyramids. In the twelfth O site, O(12) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(5), and one Fe(1) atom to form OLi2Mn2Fe square pyramids that share  a cornercorner with one O(10)LiMn3Fe square pyramid,  a cornercorner with one O(2)LiMn3Fe square pyramid, corners with two equivalent O(1)Li2Mn2Fe square pyramids,  an edgeedge with one O(1)Li2Mn2Fe square pyramid,  an edgeedge with one O(11)LiMn3Fe square pyramid, and edges with two equivalent O(8)Li2Mn2Fe square pyramids.