Li4Cr3Fe2Sn3O16 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(12), one O(15), and one O(3) atom to form LiO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Sn(3)O6 octahedra, and corners with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. In the second Li site, Li(2) is bonded to one O(14), one O(16), one O(5), and one O(9) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Cr(2)O6 octahedra,  a cornercorner with one Cr(3)O6 octahedra,  a cornercorner with one Sn(3)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-65°. In the third Li site, Li(3) is bonded to one O(1), one O(10), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra, and  an edgeedge with one Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-65°. In the fourth Li site, Li(4) is bonded to one O(13), one O(2), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Cr(2)O6 octahedra,  a cornercorner with one Cr(3)O6 octahedra,  a cornercorner with one Sn(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, and corners with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form CrO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, edges with two equivalent Sn(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 49-50°. In the second Cr site, Cr(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form CrO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, edges with two equivalent Sn(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-54°. In the third Cr site, Cr(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form CrO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, edges with two equivalent Sn(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Sn(3)O6 octahedra, corners with three equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. In the second Fe site, Fe(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 trigonal pyramids,  an edgeedge with one Cr(2)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra, and  an edgeedge with one Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-53°. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Sn(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. In the second Sn site, Sn(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. In the third Sn site, Sn(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form SnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-56°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Cr(2), one Fe(1), and one Sn(3) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Fe(1), one Sn(1), and one Sn(2) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Cr(1), one Sn(1), and one Sn(2) atom. In the fourth O site, O(4) is bonded to one Li(3), one Cr(1), one Sn(1), and one Sn(2) atom to form distorted corner-sharing OLiCrSn2 tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), one Cr(2), one Cr(3), and one Sn(3) atom to form distorted OLiCr2Sn tetrahedra that share corners with two equivalent O(15)LiCr2Fe tetrahedra and corners with two equivalent O(12)LiCrFeSn trigonal pyramids. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Cr(3), one Fe(1), and one Sn(3) atom. In the seventh O site, O(7) is bonded to one Li(4), one Cr(1), one Fe(1), and one Sn(1) atom to form distorted corner-sharing OLiCrFeSn tetrahedra. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Cr(1), one Fe(1), and one Sn(2) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(2), one Sn(1), and one Sn(2) atom. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Cr(2), one Cr(3), and one Fe(1) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Cr(2), one Fe(2), and one Sn(3) atom. In the twelfth O site, O(12) is bonded to one Li(1), one Cr(3), one Fe(2), and one Sn(3) atom to form distorted OLiCrFeSn trigonal pyramids that share  a cornercorner with one O(15)LiCr2Fe tetrahedra, corners with two equivalent O(5)LiCr2Sn tetrahedra, and  an edgeedge with one O(15)LiCr2Fe tetrahedra. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Cr(2), one Cr(3), and one Sn(3) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cr(1), one Fe(2), and one Sn(1) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Cr(2), one Cr(3), and one Fe(2) atom to form distorted OLiCr2Fe tetrahedra that share corners with two equivalent O(5)LiCr2Sn tetrahedra,  a cornercorner with one O(12)LiCrFeSn trigonal pyramid, and  an edgeedge with one O(12)LiCrFeSn trigonal pyramid. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cr(1), one Fe(2), and one Sn(2) atom.
Li4Cr3Fe2Sn3O16 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(12), one O(15), and one O(3) atom to form LiO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Sn(3)O6 octahedra, and corners with three equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. The Li(1)-O(11) bond length is 2.00 Å. The Li(1)-O(12) bond length is 2.03 Å. The Li(1)-O(15) bond length is 2.10 Å. The Li(1)-O(3) bond length is 2.03 Å. In the second Li site, Li(2) is bonded to one O(14), one O(16), one O(5), and one O(9) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Cr(2)O6 octahedra,  a cornercorner with one Cr(3)O6 octahedra,  a cornercorner with one Sn(3)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-65°. The Li(2)-O(14) bond length is 1.96 Å. The Li(2)-O(16) bond length is 1.95 Å. The Li(2)-O(5) bond length is 1.77 Å. The Li(2)-O(9) bond length is 2.08 Å. In the third Li site, Li(3) is bonded to one O(1), one O(10), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra, and  an edgeedge with one Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-65°. The Li(3)-O(1) bond length is 1.99 Å. The Li(3)-O(10) bond length is 1.94 Å. The Li(3)-O(4) bond length is 1.79 Å. The Li(3)-O(6) bond length is 2.01 Å. In the fourth Li site, Li(4) is bonded to one O(13), one O(2), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Cr(2)O6 octahedra,  a cornercorner with one Cr(3)O6 octahedra,  a cornercorner with one Sn(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, and corners with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. The Li(4)-O(13) bond length is 2.00 Å. The Li(4)-O(2) bond length is 1.99 Å. The Li(4)-O(7) bond length is 2.03 Å. The Li(4)-O(8) bond length is 2.04 Å. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form CrO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, edges with two equivalent Sn(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 49-50°. The Cr(1)-O(14) bond length is 2.09 Å. The Cr(1)-O(16) bond length is 2.09 Å. The Cr(1)-O(3) bond length is 2.03 Å. The Cr(1)-O(4) bond length is 2.00 Å. The Cr(1)-O(7) bond length is 2.03 Å. The Cr(1)-O(8) bond length is 2.04 Å. In the second Cr site, Cr(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form CrO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, edges with two equivalent Sn(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-54°. The Cr(2)-O(1) bond length is 2.07 Å. The Cr(2)-O(10) bond length is 2.11 Å. The Cr(2)-O(11) bond length is 2.03 Å. The Cr(2)-O(13) bond length is 2.02 Å. The Cr(2)-O(15) bond length is 2.04 Å. The Cr(2)-O(5) bond length is 2.01 Å. In the third Cr site, Cr(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form CrO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, edges with two equivalent Sn(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Cr(3)-O(10) bond length is 1.98 Å. The Cr(3)-O(12) bond length is 1.98 Å. The Cr(3)-O(13) bond length is 2.00 Å. The Cr(3)-O(15) bond length is 1.95 Å. The Cr(3)-O(5) bond length is 1.99 Å. The Cr(3)-O(6) bond length is 1.98 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Sn(3)O6 octahedra, corners with three equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. The Fe(1)-O(1) bond length is 2.04 Å. The Fe(1)-O(10) bond length is 2.08 Å. The Fe(1)-O(2) bond length is 2.16 Å. The Fe(1)-O(6) bond length is 2.13 Å. The Fe(1)-O(7) bond length is 2.11 Å. The Fe(1)-O(8) bond length is 2.13 Å. In the second Fe site, Fe(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 trigonal pyramids,  an edgeedge with one Cr(2)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra, and  an edgeedge with one Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-53°. The Fe(2)-O(11) bond length is 2.10 Å. The Fe(2)-O(12) bond length is 2.15 Å. The Fe(2)-O(14) bond length is 2.04 Å. The Fe(2)-O(15) bond length is 2.12 Å. The Fe(2)-O(16) bond length is 2.06 Å. The Fe(2)-O(9) bond length is 2.12 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Sn(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. The Sn(1)-O(14) bond length is 2.10 Å. The Sn(1)-O(2) bond length is 2.09 Å. The Sn(1)-O(3) bond length is 2.08 Å. The Sn(1)-O(4) bond length is 2.06 Å. The Sn(1)-O(7) bond length is 2.09 Å. The Sn(1)-O(9) bond length is 2.11 Å. In the second Sn site, Sn(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. The Sn(2)-O(16) bond length is 2.11 Å. The Sn(2)-O(2) bond length is 2.09 Å. The Sn(2)-O(3) bond length is 2.08 Å. The Sn(2)-O(4) bond length is 2.06 Å. The Sn(2)-O(8) bond length is 2.09 Å. The Sn(2)-O(9) bond length is 2.11 Å. In the third Sn site, Sn(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form SnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-56°. The Sn(3)-O(1) bond length is 2.10 Å. The Sn(3)-O(11) bond length is 2.09 Å. The Sn(3)-O(12) bond length is 2.11 Å. The Sn(3)-O(13) bond length is 2.07 Å. The Sn(3)-O(5) bond length is 2.06 Å. The Sn(3)-O(6) bond length is 2.15 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Cr(2), one Fe(1), and one Sn(3) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Fe(1), one Sn(1), and one Sn(2) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Cr(1), one Sn(1), and one Sn(2) atom. In the fourth O site, O(4) is bonded to one Li(3), one Cr(1), one Sn(1), and one Sn(2) atom to form distorted corner-sharing OLiCrSn2 tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), one Cr(2), one Cr(3), and one Sn(3) atom to form distorted OLiCr2Sn tetrahedra that share corners with two equivalent O(15)LiCr2Fe tetrahedra and corners with two equivalent O(12)LiCrFeSn trigonal pyramids. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Cr(3), one Fe(1), and one Sn(3) atom. In the seventh O site, O(7) is bonded to one Li(4), one Cr(1), one Fe(1), and one Sn(1) atom to form distorted corner-sharing OLiCrFeSn tetrahedra. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Cr(1), one Fe(1), and one Sn(2) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(2), one Sn(1), and one Sn(2) atom. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Cr(2), one Cr(3), and one Fe(1) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Cr(2), one Fe(2), and one Sn(3) atom. In the twelfth O site, O(12) is bonded to one Li(1), one Cr(3), one Fe(2), and one Sn(3) atom to form distorted OLiCrFeSn trigonal pyramids that share  a cornercorner with one O(15)LiCr2Fe tetrahedra, corners with two equivalent O(5)LiCr2Sn tetrahedra, and  an edgeedge with one O(15)LiCr2Fe tetrahedra. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Cr(2), one Cr(3), and one Sn(3) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cr(1), one Fe(2), and one Sn(1) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Cr(2), one Cr(3), and one Fe(2) atom to form distorted OLiCr2Fe tetrahedra that share corners with two equivalent O(5)LiCr2Sn tetrahedra,  a cornercorner with one O(12)LiCrFeSn trigonal pyramid, and  an edgeedge with one O(12)LiCrFeSn trigonal pyramid. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cr(1), one Fe(2), and one Sn(2) atom.