LiMnPO4 crystallizes in the orthorhombic Ccc2 space group. Li(1) is bonded to one O(2), one O(3), and two equivalent O(4) atoms to form distorted LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, 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(3) 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(4) is bonded to two equivalent Li(1), one Mn(1), and one P(1) atom to form corner-sharing OLi2MnP tetrahedra. In the third O site, O(1) is bonded in a distorted linear geometry to one Mn(1) and one P(1) atom. In the fourth O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom.
LiMnPO4 crystallizes in the orthorhombic Ccc2 space group. Li(1) is bonded to one O(2), one O(3), and two equivalent O(4) atoms to form distorted LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Mn(1)O4 tetrahedra, and corners with four equivalent P(1)O4 tetrahedra. The Li(1)-O(2) bond length is 1.99 Å. The Li(1)-O(3) bond length is 1.97 Å. There is one shorter (2.03 Å) and one longer (2.04 Å) Li(1)-O(4) bond length. 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 2.01 Å. The Mn(1)-O(2) bond length is 2.13 Å. The Mn(1)-O(3) bond length is 2.13 Å. The Mn(1)-O(4) bond length is 2.15 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 1.53 Å. The P(1)-O(2) bond length is 1.56 Å. The P(1)-O(3) bond length is 1.56 Å. The P(1)-O(4) bond length is 1.58 Å. There are four inequivalent O sites. In the first O site, O(3) 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(4) is bonded to two equivalent Li(1), one Mn(1), and one P(1) atom to form corner-sharing OLi2MnP tetrahedra. In the third O site, O(1) is bonded in a distorted linear geometry to one Mn(1) and one P(1) atom. In the fourth O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom.