Li5Fe5(CuO6)2 crystallizes in the monoclinic C2 space group. There are three 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(6) atom to form distorted LiO6 octahedra that share  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one Cu(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-16°. In the second Li site, Li(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the third Li site, Li(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(4)O6 octahedra, and edges with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)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 three equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-11°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form FeO6 octahedra that share  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one Cu(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and edges with three equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-11°. In the third Fe site, Fe(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(1)O6 octahedra, and edges with three equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. In the fourth Fe site, Fe(4) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Li(3)O6 octahedra, and edges with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-16°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form distorted CuO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Li(3)O6 octahedra, and edges with three equivalent Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-7°. In the second Cu site, Cu(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form CuO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(1)O6 octahedra, and edges with three equivalent Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-12°. There are six inequivalent O sites. In the first O site, O(5) is bonded to one Li(1), one Li(2), one Li(3), one Fe(2), one Fe(4), and one Cu(1) atom to form distorted OLi3Fe2Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(1)Li3Fe2Cu octahedra, and edges with four equivalent O(3)Li3Fe2Cu octahedra. The corner-sharing octahedral tilt angles range from 3-18°. In the second O site, O(6) is bonded to one Li(1), one Li(2), one Fe(1), one Fe(2), one Fe(3), and one Cu(2) atom to form OLi2Fe3Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(2)Li2Fe3Cu octahedra, and edges with four equivalent O(4)Li2Fe3Cu octahedra. The corner-sharing octahedral tilt angles range from 1-18°. In the third O site, O(1) is bonded to one Li(1), one Li(2), one Li(3), one Fe(2), one Fe(4), and one Cu(1) atom to form OLi3Fe2Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra, edges with four equivalent O(3)Li3Fe2Cu octahedra, and edges with four equivalent O(5)Li3Fe2Cu octahedra. The corner-sharing octahedral tilt angles range from 3-10°. In the fourth O site, O(2) is bonded to one Li(1), one Li(2), one Fe(1), one Fe(2), one Fe(3), and one Cu(2) atom to form OLi2Fe3Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(4)Li2Fe3Cu octahedra, and edges with four equivalent O(6)Li2Fe3Cu octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the fifth O site, O(3) is bonded to one Li(1), one Li(2), one Li(3), one Fe(2), one Fe(4), and one Cu(1) atom to form OLi3Fe2Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra, edges with four equivalent O(1)Li3Fe2Cu octahedra, and edges with four equivalent O(5)Li3Fe2Cu octahedra. The corner-sharing octahedral tilt angles range from 2-9°. In the sixth O site, O(4) is bonded to one Li(1), one Li(2), one Fe(1), one Fe(2), one Fe(3), and one Cu(2) atom to form distorted OLi2Fe3Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(2)Li2Fe3Cu octahedra, and edges with four equivalent O(6)Li2Fe3Cu octahedra. The corner-sharing octahedral tilt angles range from 1-16°.
Li5Fe5(CuO6)2 crystallizes in the monoclinic C2 space group. There are three 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(6) atom to form distorted LiO6 octahedra that share  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one Cu(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-16°. The Li(1)-O(1) bond length is 2.11 Å. The Li(1)-O(2) bond length is 2.15 Å. The Li(1)-O(3) bond length is 2.14 Å. The Li(1)-O(4) bond length is 2.26 Å. The Li(1)-O(5) bond length is 2.02 Å. The Li(1)-O(6) bond length is 2.48 Å. In the second Li site, Li(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Li(2)-O(1) bond length is 2.22 Å. The Li(2)-O(2) bond length is 2.12 Å. The Li(2)-O(3) bond length is 2.12 Å. The Li(2)-O(4) bond length is 2.56 Å. The Li(2)-O(5) bond length is 1.99 Å. The Li(2)-O(6) bond length is 2.21 Å. In the third Li site, Li(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(4)O6 octahedra, and edges with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. Both Li(3)-O(1) bond lengths are 2.09 Å. Both Li(3)-O(3) bond lengths are 2.27 Å. Both Li(3)-O(5) bond lengths are 2.12 Å. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)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 three equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-11°. Both Fe(1)-O(2) bond lengths are 2.02 Å. Both Fe(1)-O(4) bond lengths are 2.08 Å. Both Fe(1)-O(6) bond lengths are 2.06 Å. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form FeO6 octahedra that share  a cornercorner with one Li(3)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one Cu(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and edges with three equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-11°. The Fe(2)-O(1) bond length is 1.99 Å. The Fe(2)-O(2) bond length is 2.10 Å. The Fe(2)-O(3) bond length is 2.02 Å. The Fe(2)-O(4) bond length is 2.18 Å. The Fe(2)-O(5) bond length is 1.96 Å. The Fe(2)-O(6) bond length is 2.12 Å. In the third Fe site, Fe(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(1)O6 octahedra, and edges with three equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. Both Fe(3)-O(2) bond lengths are 2.02 Å. Both Fe(3)-O(4) bond lengths are 2.05 Å. Both Fe(3)-O(6) bond lengths are 2.11 Å. In the fourth Fe site, Fe(4) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Li(3)O6 octahedra, and edges with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-16°. Both Fe(4)-O(1) bond lengths are 2.14 Å. Both Fe(4)-O(3) bond lengths are 2.05 Å. Both Fe(4)-O(5) bond lengths are 2.02 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form distorted CuO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Li(3)O6 octahedra, and edges with three equivalent Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-7°. Both Cu(1)-O(1) bond lengths are 2.01 Å. Both Cu(1)-O(3) bond lengths are 2.01 Å. Both Cu(1)-O(5) bond lengths are 2.48 Å. In the second Cu site, Cu(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form CuO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with three equivalent Fe(1)O6 octahedra, and edges with three equivalent Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-12°. Both Cu(2)-O(2) bond lengths are 2.46 Å. Both Cu(2)-O(4) bond lengths are 2.01 Å. Both Cu(2)-O(6) bond lengths are 2.03 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded to one Li(1), one Li(2), one Li(3), one Fe(2), one Fe(4), and one Cu(1) atom to form distorted OLi3Fe2Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(1)Li3Fe2Cu octahedra, and edges with four equivalent O(3)Li3Fe2Cu octahedra. The corner-sharing octahedral tilt angles range from 3-18°. In the second O site, O(6) is bonded to one Li(1), one Li(2), one Fe(1), one Fe(2), one Fe(3), and one Cu(2) atom to form OLi2Fe3Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(2)Li2Fe3Cu octahedra, and edges with four equivalent O(4)Li2Fe3Cu octahedra. The corner-sharing octahedral tilt angles range from 1-18°. In the third O site, O(1) is bonded to one Li(1), one Li(2), one Li(3), one Fe(2), one Fe(4), and one Cu(1) atom to form OLi3Fe2Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra, edges with four equivalent O(3)Li3Fe2Cu octahedra, and edges with four equivalent O(5)Li3Fe2Cu octahedra. The corner-sharing octahedral tilt angles range from 3-10°. In the fourth O site, O(2) is bonded to one Li(1), one Li(2), one Fe(1), one Fe(2), one Fe(3), and one Cu(2) atom to form OLi2Fe3Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(4)Li2Fe3Cu octahedra, and edges with four equivalent O(6)Li2Fe3Cu octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the fifth O site, O(3) is bonded to one Li(1), one Li(2), one Li(3), one Fe(2), one Fe(4), and one Cu(1) atom to form OLi3Fe2Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(2)Li2Fe3Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(6)Li2Fe3Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra, edges with four equivalent O(1)Li3Fe2Cu octahedra, and edges with four equivalent O(5)Li3Fe2Cu octahedra. The corner-sharing octahedral tilt angles range from 2-9°. In the sixth O site, O(4) is bonded to one Li(1), one Li(2), one Fe(1), one Fe(2), one Fe(3), and one Cu(2) atom to form distorted OLi2Fe3Cu octahedra that share  a cornercorner with one O(2)Li2Fe3Cu octahedra,  a cornercorner with one O(4)Li2Fe3Cu octahedra,  a cornercorner with one O(6)Li2Fe3Cu octahedra,  a cornercorner with one O(1)Li3Fe2Cu octahedra,  a cornercorner with one O(3)Li3Fe2Cu octahedra,  a cornercorner with one O(5)Li3Fe2Cu octahedra,  an edgeedge with one O(4)Li2Fe3Cu octahedra,  an edgeedge with one O(1)Li3Fe2Cu octahedra,  an edgeedge with one O(3)Li3Fe2Cu octahedra,  an edgeedge with one O(5)Li3Fe2Cu octahedra, edges with four equivalent O(2)Li2Fe3Cu octahedra, and edges with four equivalent O(6)Li2Fe3Cu octahedra. The corner-sharing octahedral tilt angles range from 1-16°.