LiMn(PO3)4 crystallizes in the monoclinic C2/c space group. Li(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms. Mn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with four equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 52°. In the second P site, P(2) is bonded to one O(1), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 27-51°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Li(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(2) atom.
LiMn(PO3)4 crystallizes in the monoclinic C2/c space group. Li(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms. Both Li(1)-O(2) bond lengths are 2.57 Å. Both Li(1)-O(5) bond lengths are 1.93 Å. Both Li(1)-O(6) bond lengths are 2.33 Å. Mn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with four equivalent P(2)O4 tetrahedra. Both Mn(1)-O(2) bond lengths are 1.96 Å. Both Mn(1)-O(3) bond lengths are 2.18 Å. Both Mn(1)-O(6) bond lengths are 2.00 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 52°. The P(1)-O(1) bond length is 1.61 Å. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(4) bond length is 1.63 Å. The P(1)-O(5) bond length is 1.46 Å. In the second P site, P(2) is bonded to one O(1), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 27-51°. The P(2)-O(1) bond length is 1.61 Å. The P(2)-O(3) bond length is 1.48 Å. The P(2)-O(4) bond length is 1.60 Å. The P(2)-O(6) bond length is 1.53 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Li(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(2) atom.