Li8Fe7O15 is Caswellsilverite-like structured and crystallizes in the monoclinic C2/m space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(4) atoms to form LiO6 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, corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. In the second Li site, Li(2) is bonded to one O(3), one O(5), two equivalent O(4), and two equivalent O(8) atoms to form LiO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with three equivalent Li(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the third Li site, Li(3) is bonded to one O(1), one O(5), two equivalent O(7), and two equivalent O(8) atoms to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, corners with three equivalent Li(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with two equivalent Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth Li site, Li(4) is bonded to one O(2), two equivalent O(7), and three equivalent O(6) atoms to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(3)O6 octahedra, and edges with four equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(4), one O(8), two equivalent O(1), and two equivalent O(3) atoms to form FeO6 octahedra that share  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with three equivalent Fe(1)O6 octahedra, and edges with four equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the second Fe site, Fe(2) is bonded to one O(7), two equivalent O(1), and three equivalent O(2) atoms to form FeO6 octahedra that share  a cornercorner with one Li(4)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(1)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 three equivalent Li(1)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-9°. In the third Fe site, Fe(3) is bonded to one O(4), one O(7), two equivalent O(5), and two equivalent O(6) atoms to form FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with three equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-7°. In the fourth Fe site, Fe(4) is bonded to two equivalent O(8) and four equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, edges with four equivalent Li(2)O6 octahedra, and edges with four equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are eight inequivalent O sites. In the first O site, O(3) is bonded to two equivalent Li(2) and four equivalent Fe(1) atoms to form OLi2Fe4 octahedra that share corners with two equivalent O(5)Li2Fe4 octahedra, corners with four equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(3)Li2Fe4 octahedra, edges with four equivalent O(4)Li4Fe2 octahedra, and edges with four equivalent O(8)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the second O site, O(4) is bonded to two equivalent Li(1), two equivalent Li(2), one Fe(1), and one Fe(3) atom to form OLi4Fe2 octahedra that share  a cornercorner with one O(7)Li4Fe2 octahedra, corners with two equivalent O(2)Li3Fe3 octahedra, corners with three equivalent O(8)Li4Fe2 octahedra,  an edgeedge with one O(2)Li3Fe3 octahedra,  an edgeedge with one O(8)Li4Fe2 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(3)Li2Fe4 octahedra, edges with two equivalent O(5)Li2Fe4 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, and edges with two equivalent O(6)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the third O site, O(5) is bonded to one Li(2), one Li(3), two equivalent Fe(3), and two equivalent Fe(4) atoms to form OLi2Fe4 octahedra that share  a cornercorner with one O(1)Li2Fe4 octahedra,  a cornercorner with one O(3)Li2Fe4 octahedra, corners with two equivalent O(5)Li2Fe4 octahedra, corners with two equivalent O(6)Li4Fe2 octahedra,  an edgeedge with one O(6)Li4Fe2 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, edges with three equivalent O(5)Li2Fe4 octahedra, and edges with four equivalent O(8)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. In the fourth O site, O(6) is bonded to one Li(1), three equivalent Li(4), and two equivalent Fe(3) atoms to form OLi4Fe2 octahedra that share  a cornercorner with one O(1)Li2Fe4 octahedra,  a cornercorner with one O(2)Li3Fe3 octahedra, corners with two equivalent O(5)Li2Fe4 octahedra, corners with two equivalent O(7)Li4Fe2 octahedra,  an edgeedge with one O(5)Li2Fe4 octahedra, edges with two equivalent O(2)Li3Fe3 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, edges with three equivalent O(7)Li4Fe2 octahedra, and edges with four equivalent O(6)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 2-10°. In the fifth O site, O(7) is bonded to two equivalent Li(3), two equivalent Li(4), one Fe(2), and one Fe(3) atom to form OLi4Fe2 octahedra that share  a cornercorner with one O(2)Li3Fe3 octahedra,  a cornercorner with one O(4)Li4Fe2 octahedra, corners with two equivalent O(6)Li4Fe2 octahedra, corners with two equivalent O(8)Li4Fe2 octahedra,  an edgeedge with one O(8)Li4Fe2 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(5)Li2Fe4 octahedra, edges with two equivalent O(2)Li3Fe3 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, and edges with three equivalent O(6)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. In the sixth O site, O(8) is bonded to two equivalent Li(2), two equivalent Li(3), one Fe(1), and one Fe(4) atom to form OLi4Fe2 octahedra that share  a cornercorner with one O(8)Li4Fe2 octahedra, corners with two equivalent O(7)Li4Fe2 octahedra, corners with three equivalent O(4)Li4Fe2 octahedra,  an edgeedge with one O(4)Li4Fe2 octahedra,  an edgeedge with one O(7)Li4Fe2 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(3)Li2Fe4 octahedra, edges with two equivalent O(8)Li4Fe2 octahedra, and edges with four equivalent O(5)Li2Fe4 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the seventh O site, O(1) is bonded to one Li(1), one Li(3), two equivalent Fe(1), and two equivalent Fe(2) atoms to form OLi2Fe4 octahedra that share  a cornercorner with one O(5)Li2Fe4 octahedra,  a cornercorner with one O(6)Li4Fe2 octahedra, corners with two equivalent O(3)Li2Fe4 octahedra, corners with two equivalent O(2)Li3Fe3 octahedra,  an edgeedge with one O(3)Li2Fe4 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, edges with two equivalent O(8)Li4Fe2 octahedra, and edges with three equivalent O(2)Li3Fe3 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the eighth O site, O(2) is bonded to one Li(4), two equivalent Li(1), and three equivalent Fe(2) atoms to form OLi3Fe3 octahedra that share  a cornercorner with one O(6)Li4Fe2 octahedra,  a cornercorner with one O(7)Li4Fe2 octahedra, corners with two equivalent O(1)Li2Fe4 octahedra, corners with two equivalent O(4)Li4Fe2 octahedra,  an edgeedge with one O(4)Li4Fe2 octahedra, edges with two equivalent O(6)Li4Fe2 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, edges with three equivalent O(1)Li2Fe4 octahedra, and edges with four equivalent O(2)Li3Fe3 octahedra. The corner-sharing octahedral tilt angles range from 1-10°.
Li8Fe7O15 is Caswellsilverite-like structured and crystallizes in the monoclinic C2/m space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(4) atoms to form LiO6 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, corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. The Li(1)-O(1) bond length is 2.04 Å. The Li(1)-O(6) bond length is 1.95 Å. Both Li(1)-O(2) bond lengths are 2.24 Å. Both Li(1)-O(4) bond lengths are 2.11 Å. In the second Li site, Li(2) is bonded to one O(3), one O(5), two equivalent O(4), and two equivalent O(8) atoms to form LiO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with three equivalent Li(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. The Li(2)-O(3) bond length is 2.00 Å. The Li(2)-O(5) bond length is 1.98 Å. Both Li(2)-O(4) bond lengths are 2.13 Å. Both Li(2)-O(8) bond lengths are 2.13 Å. In the third Li site, Li(3) is bonded to one O(1), one O(5), two equivalent O(7), and two equivalent O(8) atoms to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, corners with three equivalent Li(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with two equivalent Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Li(3)-O(1) bond length is 2.03 Å. The Li(3)-O(5) bond length is 1.98 Å. Both Li(3)-O(7) bond lengths are 2.14 Å. Both Li(3)-O(8) bond lengths are 2.12 Å. In the fourth Li site, Li(4) is bonded to one O(2), two equivalent O(7), and three equivalent O(6) atoms to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(3)O6 octahedra, and edges with four equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. The Li(4)-O(2) bond length is 2.09 Å. Both Li(4)-O(7) bond lengths are 2.16 Å. There is one shorter (1.99 Å) and two longer (2.20 Å) Li(4)-O(6) bond lengths. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(4), one O(8), two equivalent O(1), and two equivalent O(3) atoms to form FeO6 octahedra that share  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with three equivalent Fe(1)O6 octahedra, and edges with four equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. The Fe(1)-O(4) bond length is 1.96 Å. The Fe(1)-O(8) bond length is 1.97 Å. Both Fe(1)-O(1) bond lengths are 2.11 Å. Both Fe(1)-O(3) bond lengths are 2.13 Å. In the second Fe site, Fe(2) is bonded to one O(7), two equivalent O(1), and three equivalent O(2) atoms to form FeO6 octahedra that share  a cornercorner with one Li(4)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(1)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 three equivalent Li(1)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-9°. The Fe(2)-O(7) bond length is 1.90 Å. Both Fe(2)-O(1) bond lengths are 2.17 Å. There are two shorter (2.03 Å) and one longer (2.06 Å) Fe(2)-O(2) bond length. In the third Fe site, Fe(3) is bonded to one O(4), one O(7), two equivalent O(5), and two equivalent O(6) atoms to form FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with three equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-7°. The Fe(3)-O(4) bond length is 2.02 Å. The Fe(3)-O(7) bond length is 2.00 Å. Both Fe(3)-O(5) bond lengths are 2.22 Å. Both Fe(3)-O(6) bond lengths are 1.97 Å. In the fourth Fe site, Fe(4) is bonded to two equivalent O(8) and four equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, edges with four equivalent Li(2)O6 octahedra, and edges with four equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. Both Fe(4)-O(8) bond lengths are 2.02 Å. All Fe(4)-O(5) bond lengths are 2.10 Å. There are eight inequivalent O sites. In the first O site, O(3) is bonded to two equivalent Li(2) and four equivalent Fe(1) atoms to form OLi2Fe4 octahedra that share corners with two equivalent O(5)Li2Fe4 octahedra, corners with four equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(3)Li2Fe4 octahedra, edges with four equivalent O(4)Li4Fe2 octahedra, and edges with four equivalent O(8)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the second O site, O(4) is bonded to two equivalent Li(1), two equivalent Li(2), one Fe(1), and one Fe(3) atom to form OLi4Fe2 octahedra that share  a cornercorner with one O(7)Li4Fe2 octahedra, corners with two equivalent O(2)Li3Fe3 octahedra, corners with three equivalent O(8)Li4Fe2 octahedra,  an edgeedge with one O(2)Li3Fe3 octahedra,  an edgeedge with one O(8)Li4Fe2 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(3)Li2Fe4 octahedra, edges with two equivalent O(5)Li2Fe4 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, and edges with two equivalent O(6)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the third O site, O(5) is bonded to one Li(2), one Li(3), two equivalent Fe(3), and two equivalent Fe(4) atoms to form OLi2Fe4 octahedra that share  a cornercorner with one O(1)Li2Fe4 octahedra,  a cornercorner with one O(3)Li2Fe4 octahedra, corners with two equivalent O(5)Li2Fe4 octahedra, corners with two equivalent O(6)Li4Fe2 octahedra,  an edgeedge with one O(6)Li4Fe2 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, edges with three equivalent O(5)Li2Fe4 octahedra, and edges with four equivalent O(8)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. In the fourth O site, O(6) is bonded to one Li(1), three equivalent Li(4), and two equivalent Fe(3) atoms to form OLi4Fe2 octahedra that share  a cornercorner with one O(1)Li2Fe4 octahedra,  a cornercorner with one O(2)Li3Fe3 octahedra, corners with two equivalent O(5)Li2Fe4 octahedra, corners with two equivalent O(7)Li4Fe2 octahedra,  an edgeedge with one O(5)Li2Fe4 octahedra, edges with two equivalent O(2)Li3Fe3 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, edges with three equivalent O(7)Li4Fe2 octahedra, and edges with four equivalent O(6)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 2-10°. In the fifth O site, O(7) is bonded to two equivalent Li(3), two equivalent Li(4), one Fe(2), and one Fe(3) atom to form OLi4Fe2 octahedra that share  a cornercorner with one O(2)Li3Fe3 octahedra,  a cornercorner with one O(4)Li4Fe2 octahedra, corners with two equivalent O(6)Li4Fe2 octahedra, corners with two equivalent O(8)Li4Fe2 octahedra,  an edgeedge with one O(8)Li4Fe2 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(5)Li2Fe4 octahedra, edges with two equivalent O(2)Li3Fe3 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, and edges with three equivalent O(6)Li4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. In the sixth O site, O(8) is bonded to two equivalent Li(2), two equivalent Li(3), one Fe(1), and one Fe(4) atom to form OLi4Fe2 octahedra that share  a cornercorner with one O(8)Li4Fe2 octahedra, corners with two equivalent O(7)Li4Fe2 octahedra, corners with three equivalent O(4)Li4Fe2 octahedra,  an edgeedge with one O(4)Li4Fe2 octahedra,  an edgeedge with one O(7)Li4Fe2 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(3)Li2Fe4 octahedra, edges with two equivalent O(8)Li4Fe2 octahedra, and edges with four equivalent O(5)Li2Fe4 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the seventh O site, O(1) is bonded to one Li(1), one Li(3), two equivalent Fe(1), and two equivalent Fe(2) atoms to form OLi2Fe4 octahedra that share  a cornercorner with one O(5)Li2Fe4 octahedra,  a cornercorner with one O(6)Li4Fe2 octahedra, corners with two equivalent O(3)Li2Fe4 octahedra, corners with two equivalent O(2)Li3Fe3 octahedra,  an edgeedge with one O(3)Li2Fe4 octahedra, edges with two equivalent O(1)Li2Fe4 octahedra, edges with two equivalent O(4)Li4Fe2 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, edges with two equivalent O(8)Li4Fe2 octahedra, and edges with three equivalent O(2)Li3Fe3 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the eighth O site, O(2) is bonded to one Li(4), two equivalent Li(1), and three equivalent Fe(2) atoms to form OLi3Fe3 octahedra that share  a cornercorner with one O(6)Li4Fe2 octahedra,  a cornercorner with one O(7)Li4Fe2 octahedra, corners with two equivalent O(1)Li2Fe4 octahedra, corners with two equivalent O(4)Li4Fe2 octahedra,  an edgeedge with one O(4)Li4Fe2 octahedra, edges with two equivalent O(6)Li4Fe2 octahedra, edges with two equivalent O(7)Li4Fe2 octahedra, edges with three equivalent O(1)Li2Fe4 octahedra, and edges with four equivalent O(2)Li3Fe3 octahedra. The corner-sharing octahedral tilt angles range from 1-10°.