LiMnPO4 crystallizes in the orthorhombic Pna2_1 space group. Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with four equivalent Mn(1)O4 tetrahedra and corners with four equivalent P(1)O4 tetrahedra. Mn(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MnO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra and corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra and corners with four equivalent Mn(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom.
LiMnPO4 crystallizes in the orthorhombic Pna2_1 space group. Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with four equivalent Mn(1)O4 tetrahedra and corners with four equivalent P(1)O4 tetrahedra. The Li(1)-O(1) bond length is 2.03 Å. The Li(1)-O(2) bond length is 2.00 Å. The Li(1)-O(3) bond length is 1.99 Å. The Li(1)-O(4) bond length is 2.07 Å. Mn(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MnO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra and corners with four equivalent P(1)O4 tetrahedra. The Mn(1)-O(1) bond length is 2.09 Å. The Mn(1)-O(2) bond length is 2.08 Å. The Mn(1)-O(3) bond length is 2.09 Å. The Mn(1)-O(4) bond length is 2.09 Å. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra and corners with four equivalent Mn(1)O4 tetrahedra. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(2) bond length is 1.56 Å. The P(1)-O(3) bond length is 1.55 Å. The P(1)-O(4) bond length is 1.56 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom.