Li2MnSn(PO4)2 is Hausmannite-derived structured and crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form LiO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-72°. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to two equivalent O(4) and two equivalent O(6) atoms. Mn(1) is bonded to one O(1), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form distorted MnO6 octahedra that share corners with four equivalent Li(1)O6 octahedra, corners with four equivalent Sn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-72°. Sn(1) is bonded to one O(2), one O(6), two equivalent O(3), and two equivalent O(4) atoms to form distorted SnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, edges with two equivalent Li(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-62°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with three equivalent Mn(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-63°. In the second P site, P(2) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with three equivalent Sn(1)O6 octahedra, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-58°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Li(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(1), one Sn(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(1), one Sn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Mn(1), one Sn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mn(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Li(2), one Sn(1), and one P(2) atom.
Li2MnSn(PO4)2 is Hausmannite-derived structured and crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form LiO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-72°. Both Li(1)-O(1) bond lengths are 2.23 Å. Both Li(1)-O(2) bond lengths are 2.24 Å. Both Li(1)-O(3) bond lengths are 2.20 Å. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to two equivalent O(4) and two equivalent O(6) atoms. Both Li(2)-O(4) bond lengths are 2.12 Å. Both Li(2)-O(6) bond lengths are 2.08 Å. Mn(1) is bonded to one O(1), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form distorted MnO6 octahedra that share corners with four equivalent Li(1)O6 octahedra, corners with four equivalent Sn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-72°. The Mn(1)-O(1) bond length is 2.17 Å. The Mn(1)-O(5) bond length is 2.25 Å. Both Mn(1)-O(3) bond lengths are 2.27 Å. Both Mn(1)-O(4) bond lengths are 2.30 Å. Sn(1) is bonded to one O(2), one O(6), two equivalent O(3), and two equivalent O(4) atoms to form distorted SnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, edges with two equivalent Li(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-62°. The Sn(1)-O(2) bond length is 2.58 Å. The Sn(1)-O(6) bond length is 2.51 Å. Both Sn(1)-O(3) bond lengths are 2.48 Å. Both Sn(1)-O(4) bond lengths are 2.44 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with three equivalent Mn(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-63°. The P(1)-O(1) bond length is 1.56 Å. The P(1)-O(2) bond length is 1.54 Å. Both P(1)-O(3) bond lengths are 1.58 Å. In the second P site, P(2) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with three equivalent Sn(1)O6 octahedra, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-58°. The P(2)-O(5) bond length is 1.54 Å. The P(2)-O(6) bond length is 1.56 Å. Both P(2)-O(4) bond lengths are 1.57 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Li(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(1), one Sn(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(1), one Sn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Mn(1), one Sn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mn(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Li(2), one Sn(1), and one P(2) atom.