Li2Mn3SbO8 is Spinel-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, and corners with three equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-63°. In the second Li site, Li(2) is bonded to one O(2), one O(3), one O(6), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, and corners with three equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form MnO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. In the third Mn site, Mn(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Mn(4)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. In the fourth Mn site, Mn(4) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and  an edgeedge with one Sb(2)O6 octahedra. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form SbO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. In the second Sb site, Sb(2) is bonded to two equivalent O(4), two equivalent O(6), and two equivalent O(8) atoms to form SbO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Mn(1), one Mn(2), and one Mn(5) atom to form OLiMn3 tetrahedra that share  a cornercorner with one O(2)LiMn3 tetrahedra, corners with two equivalent O(1)LiMn3 tetrahedra,  a cornercorner with one O(8)LiMn2Sb trigonal pyramid, corners with two equivalent O(7)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(7)LiMn2Sb trigonal pyramid. In the second O site, O(2) is bonded to one Li(2), one Mn(3), one Mn(4), and one Mn(5) atom to form OLiMn3 tetrahedra that share  a cornercorner with one O(1)LiMn3 tetrahedra, corners with two equivalent O(2)LiMn3 tetrahedra,  a cornercorner with one O(7)LiMn2Sb trigonal pyramid, corners with two equivalent O(8)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(8)LiMn2Sb trigonal pyramid. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(1), one Mn(2), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(3), one Mn(4), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(1), one Mn(5), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(4), one Mn(5), and one Sb(2) atom. In the seventh O site, O(7) is bonded to one Li(1), one Mn(2), one Mn(5), and one Sb(1) atom to form distorted OLiMn2Sb trigonal pyramids that share  a cornercorner with one O(2)LiMn3 tetrahedra, corners with two equivalent O(1)LiMn3 tetrahedra,  a cornercorner with one O(8)LiMn2Sb trigonal pyramid, corners with two equivalent O(7)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(1)LiMn3 tetrahedra. In the eighth O site, O(8) is bonded to one Li(2), one Mn(3), one Mn(5), and one Sb(2) atom to form distorted OLiMn2Sb trigonal pyramids that share  a cornercorner with one O(1)LiMn3 tetrahedra, corners with two equivalent O(2)LiMn3 tetrahedra,  a cornercorner with one O(7)LiMn2Sb trigonal pyramid, corners with two equivalent O(8)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(2)LiMn3 tetrahedra.
Li2Mn3SbO8 is Spinel-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, and corners with three equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-63°. The Li(1)-O(1) bond length is 2.14 Å. The Li(1)-O(4) bond length is 2.04 Å. The Li(1)-O(5) bond length is 2.03 Å. The Li(1)-O(7) bond length is 2.06 Å. In the second Li site, Li(2) is bonded to one O(2), one O(3), one O(6), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, and corners with three equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. The Li(2)-O(2) bond length is 2.10 Å. The Li(2)-O(3) bond length is 1.96 Å. The Li(2)-O(6) bond length is 1.97 Å. The Li(2)-O(8) bond length is 2.11 Å. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form MnO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. Both Mn(1)-O(1) bond lengths are 2.03 Å. Both Mn(1)-O(3) bond lengths are 2.20 Å. Both Mn(1)-O(5) bond lengths are 1.97 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. Both Mn(2)-O(1) bond lengths are 1.96 Å. Both Mn(2)-O(3) bond lengths are 2.21 Å. Both Mn(2)-O(7) bond lengths are 2.04 Å. In the third Mn site, Mn(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Mn(4)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. Both Mn(3)-O(2) bond lengths are 1.96 Å. Both Mn(3)-O(4) bond lengths are 2.26 Å. Both Mn(3)-O(8) bond lengths are 2.02 Å. In the fourth Mn site, Mn(4) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(5)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. Both Mn(4)-O(2) bond lengths are 2.05 Å. Both Mn(4)-O(4) bond lengths are 1.97 Å. Both Mn(4)-O(6) bond lengths are 2.19 Å. In the fifth Mn site, Mn(5) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and  an edgeedge with one Sb(2)O6 octahedra. The Mn(5)-O(1) bond length is 1.96 Å. The Mn(5)-O(2) bond length is 1.96 Å. The Mn(5)-O(5) bond length is 2.27 Å. The Mn(5)-O(6) bond length is 2.20 Å. The Mn(5)-O(7) bond length is 2.02 Å. The Mn(5)-O(8) bond length is 2.05 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form SbO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. Both Sb(1)-O(3) bond lengths are 1.97 Å. Both Sb(1)-O(5) bond lengths are 2.03 Å. Both Sb(1)-O(7) bond lengths are 2.07 Å. In the second Sb site, Sb(2) is bonded to two equivalent O(4), two equivalent O(6), and two equivalent O(8) atoms to form SbO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. Both Sb(2)-O(4) bond lengths are 2.03 Å. Both Sb(2)-O(6) bond lengths are 1.97 Å. Both Sb(2)-O(8) bond lengths are 2.07 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Mn(1), one Mn(2), and one Mn(5) atom to form OLiMn3 tetrahedra that share  a cornercorner with one O(2)LiMn3 tetrahedra, corners with two equivalent O(1)LiMn3 tetrahedra,  a cornercorner with one O(8)LiMn2Sb trigonal pyramid, corners with two equivalent O(7)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(7)LiMn2Sb trigonal pyramid. In the second O site, O(2) is bonded to one Li(2), one Mn(3), one Mn(4), and one Mn(5) atom to form OLiMn3 tetrahedra that share  a cornercorner with one O(1)LiMn3 tetrahedra, corners with two equivalent O(2)LiMn3 tetrahedra,  a cornercorner with one O(7)LiMn2Sb trigonal pyramid, corners with two equivalent O(8)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(8)LiMn2Sb trigonal pyramid. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(1), one Mn(2), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(3), one Mn(4), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(1), one Mn(5), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(4), one Mn(5), and one Sb(2) atom. In the seventh O site, O(7) is bonded to one Li(1), one Mn(2), one Mn(5), and one Sb(1) atom to form distorted OLiMn2Sb trigonal pyramids that share  a cornercorner with one O(2)LiMn3 tetrahedra, corners with two equivalent O(1)LiMn3 tetrahedra,  a cornercorner with one O(8)LiMn2Sb trigonal pyramid, corners with two equivalent O(7)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(1)LiMn3 tetrahedra. In the eighth O site, O(8) is bonded to one Li(2), one Mn(3), one Mn(5), and one Sb(2) atom to form distorted OLiMn2Sb trigonal pyramids that share  a cornercorner with one O(1)LiMn3 tetrahedra, corners with two equivalent O(2)LiMn3 tetrahedra,  a cornercorner with one O(7)LiMn2Sb trigonal pyramid, corners with two equivalent O(8)LiMn2Sb trigonal pyramids, and  an edgeedge with one O(2)LiMn3 tetrahedra.