Li4Mn3Ni3(SnO8)2 is Spinel-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent Li sites. In the first Li site, Li(1) 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 Ni(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent Sn(2)O6 octahedra, and corners with four equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-64°. In the second Li site, Li(2) is bonded in a rectangular see-saw-like geometry to one O(5), one O(7), and two equivalent O(11) atoms. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. In the fourth Li site, Li(4) 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 Mn(2)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra, corners with two equivalent Ni(2)O6 octahedra, corners with three equivalent Sn(1)O6 octahedra, and corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-65°. There are two inequivalent Mn sites. In the first Mn site, Mn(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 MnO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Mn site, Mn(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(2)O6 octahedra, and edges with four equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. In the second Ni site, Ni(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 NiO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Ni(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. In the second Sn site, Sn(2) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form SnO6 octahedra that share corners with two equivalent Ni(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra,  an edgeedge with one Mn(2)O6 octahedra, and edges with two equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-56°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Mn(2), one Ni(2), and one Sn(1) atom. In the second O site, O(2) is bonded to one Li(4), two equivalent Mn(1), and one Sn(1) atom to form distorted OLiMn2Sn trigonal pyramids that share  a cornercorner with one O(10)LiMnNi2 tetrahedra, corners with two equivalent O(4)LiMn2Ni tetrahedra, corners with two equivalent O(6)LiMnNiSn tetrahedra, and edges with two equivalent O(6)LiMnNiSn tetrahedra. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), two equivalent Mn(1), and one Ni(1) atom. In the fourth O site, O(4) is bonded to one Li(3), two equivalent Mn(1), and one Ni(1) atom to form distorted OLiMn2Ni tetrahedra that share corners with four equivalent O(6)LiMnNiSn tetrahedra and corners with two equivalent O(2)LiMn2Sn trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Mn(2), and two equivalent Ni(2) atoms to form OLiMnNi2 tetrahedra that share corners with two equivalent O(12)LiNi2Sn tetrahedra and corners with three equivalent O(10)LiMnNi2 tetrahedra. In the sixth O site, O(6) is bonded to one Li(4), one Mn(1), one Ni(1), and one Sn(1) atom to form distorted OLiMnNiSn tetrahedra that share  a cornercorner with one O(10)LiMnNi2 tetrahedra,  a cornercorner with one O(6)LiMnNiSn tetrahedra, corners with two equivalent O(4)LiMn2Ni tetrahedra,  a cornercorner with one O(2)LiMn2Sn trigonal pyramid,  an edgeedge with one O(6)LiMnNiSn tetrahedra, and  an edgeedge with one O(2)LiMn2Sn trigonal pyramid. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one Li(2), two equivalent Mn(1), and one Sn(2) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(3), two equivalent Ni(2), and one Sn(1) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(2), one Ni(2), and one Sn(2) atom. In the tenth O site, O(10) is bonded to one Li(4), one Mn(2), and two equivalent Ni(2) atoms to form distorted OLiMnNi2 tetrahedra that share corners with two equivalent O(6)LiMnNiSn tetrahedra, corners with three equivalent O(5)LiMnNi2 tetrahedra,  a cornercorner with one O(2)LiMn2Sn trigonal pyramid, and  an edgeedge with one O(12)LiNi2Sn tetrahedra. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(1), one Ni(1), and one Sn(2) atom. In the twelfth O site, O(12) is bonded to one Li(1), two equivalent Ni(2), and one Sn(2) atom to form a mixture of distorted corner and edge-sharing OLiNi2Sn tetrahedra.
Li4Mn3Ni3(SnO8)2 is Spinel-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent Li sites. In the first Li site, Li(1) 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 Ni(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent Sn(2)O6 octahedra, and corners with four equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-64°. The Li(1)-O(12) bond length is 1.95 Å. The Li(1)-O(3) bond length is 2.12 Å. Both Li(1)-O(9) bond lengths are 1.93 Å. In the second Li site, Li(2) is bonded in a rectangular see-saw-like geometry to one O(5), one O(7), and two equivalent O(11) atoms. The Li(2)-O(5) bond length is 1.82 Å. The Li(2)-O(7) bond length is 1.96 Å. Both Li(2)-O(11) bond lengths are 1.90 Å. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. The Li(3)-O(4) bond length is 1.81 Å. The Li(3)-O(8) bond length is 1.91 Å. Both Li(3)-O(1) bond lengths are 1.91 Å. In the fourth Li site, Li(4) 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 Mn(2)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra, corners with two equivalent Ni(2)O6 octahedra, corners with three equivalent Sn(1)O6 octahedra, and corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-65°. The Li(4)-O(10) bond length is 2.17 Å. The Li(4)-O(2) bond length is 2.01 Å. Both Li(4)-O(6) bond lengths are 1.92 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(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 MnO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. The Mn(1)-O(11) bond length is 1.96 Å. The Mn(1)-O(2) bond length is 1.96 Å. The Mn(1)-O(3) bond length is 1.91 Å. The Mn(1)-O(4) bond length is 1.91 Å. The Mn(1)-O(6) bond length is 1.92 Å. The Mn(1)-O(7) bond length is 1.98 Å. In the second Mn site, Mn(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(2)O6 octahedra, and edges with four equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. The Mn(2)-O(10) bond length is 1.96 Å. The Mn(2)-O(5) bond length is 1.95 Å. Both Mn(2)-O(1) bond lengths are 1.95 Å. Both Mn(2)-O(9) bond lengths are 1.92 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. The Ni(1)-O(3) bond length is 2.05 Å. The Ni(1)-O(4) bond length is 2.03 Å. Both Ni(1)-O(11) bond lengths are 2.06 Å. Both Ni(1)-O(6) bond lengths are 2.07 Å. In the second Ni site, Ni(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 NiO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. The Ni(2)-O(1) bond length is 2.12 Å. The Ni(2)-O(10) bond length is 1.91 Å. The Ni(2)-O(12) bond length is 1.93 Å. The Ni(2)-O(5) bond length is 1.92 Å. The Ni(2)-O(8) bond length is 1.95 Å. The Ni(2)-O(9) bond length is 2.13 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Ni(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. The Sn(1)-O(2) bond length is 2.21 Å. The Sn(1)-O(8) bond length is 2.06 Å. Both Sn(1)-O(1) bond lengths are 2.05 Å. Both Sn(1)-O(6) bond lengths are 2.13 Å. In the second Sn site, Sn(2) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form SnO6 octahedra that share corners with two equivalent Ni(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra,  an edgeedge with one Mn(2)O6 octahedra, and edges with two equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-56°. The Sn(2)-O(12) bond length is 2.17 Å. The Sn(2)-O(7) bond length is 2.16 Å. Both Sn(2)-O(11) bond lengths are 2.04 Å. Both Sn(2)-O(9) bond lengths are 2.12 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Mn(2), one Ni(2), and one Sn(1) atom. In the second O site, O(2) is bonded to one Li(4), two equivalent Mn(1), and one Sn(1) atom to form distorted OLiMn2Sn trigonal pyramids that share  a cornercorner with one O(10)LiMnNi2 tetrahedra, corners with two equivalent O(4)LiMn2Ni tetrahedra, corners with two equivalent O(6)LiMnNiSn tetrahedra, and edges with two equivalent O(6)LiMnNiSn tetrahedra. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), two equivalent Mn(1), and one Ni(1) atom. In the fourth O site, O(4) is bonded to one Li(3), two equivalent Mn(1), and one Ni(1) atom to form distorted OLiMn2Ni tetrahedra that share corners with four equivalent O(6)LiMnNiSn tetrahedra and corners with two equivalent O(2)LiMn2Sn trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Mn(2), and two equivalent Ni(2) atoms to form OLiMnNi2 tetrahedra that share corners with two equivalent O(12)LiNi2Sn tetrahedra and corners with three equivalent O(10)LiMnNi2 tetrahedra. In the sixth O site, O(6) is bonded to one Li(4), one Mn(1), one Ni(1), and one Sn(1) atom to form distorted OLiMnNiSn tetrahedra that share  a cornercorner with one O(10)LiMnNi2 tetrahedra,  a cornercorner with one O(6)LiMnNiSn tetrahedra, corners with two equivalent O(4)LiMn2Ni tetrahedra,  a cornercorner with one O(2)LiMn2Sn trigonal pyramid,  an edgeedge with one O(6)LiMnNiSn tetrahedra, and  an edgeedge with one O(2)LiMn2Sn trigonal pyramid. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one Li(2), two equivalent Mn(1), and one Sn(2) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(3), two equivalent Ni(2), and one Sn(1) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(2), one Ni(2), and one Sn(2) atom. In the tenth O site, O(10) is bonded to one Li(4), one Mn(2), and two equivalent Ni(2) atoms to form distorted OLiMnNi2 tetrahedra that share corners with two equivalent O(6)LiMnNiSn tetrahedra, corners with three equivalent O(5)LiMnNi2 tetrahedra,  a cornercorner with one O(2)LiMn2Sn trigonal pyramid, and  an edgeedge with one O(12)LiNi2Sn tetrahedra. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(1), one Ni(1), and one Sn(2) atom. In the twelfth O site, O(12) is bonded to one Li(1), two equivalent Ni(2), and one Sn(2) atom to form a mixture of distorted corner and edge-sharing OLiNi2Sn tetrahedra.