LiMnPH2O5 crystallizes in the orthorhombic Pmn2_1 space group. Li(1) is bonded in a water-like geometry to one O(1) and one O(3) atom. Mn(1) is bonded to one O(2), one O(3), and four equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 65°. P(1) is bonded to one O(1), one O(2), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-56°. H(1) is bonded in a single-bond geometry to one O(3) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Li(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Mn(1), and two equivalent H(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one P(1) atom.
LiMnPH2O5 crystallizes in the orthorhombic Pmn2_1 space group. Li(1) is bonded in a water-like geometry to one O(1) and one O(3) atom. The Li(1)-O(1) bond length is 1.82 Å. The Li(1)-O(3) bond length is 1.97 Å. Mn(1) is bonded to one O(2), one O(3), and four equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 65°. The Mn(1)-O(2) bond length is 2.12 Å. The Mn(1)-O(3) bond length is 2.37 Å. There are two shorter (2.15 Å) and two longer (2.29 Å) Mn(1)-O(4) bond lengths. P(1) is bonded to one O(1), one O(2), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-56°. The P(1)-O(1) bond length is 1.53 Å. The P(1)-O(2) bond length is 1.53 Å. Both P(1)-O(4) bond lengths are 1.59 Å. H(1) is bonded in a single-bond geometry to one O(3) atom. The H(1)-O(3) bond length is 0.99 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Li(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Mn(1), and two equivalent H(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one P(1) atom.