MnPO4 crystallizes in the orthorhombic C222_1 space group. Mn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with two equivalent Mn(1)O6 octahedra. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(1) atom.
MnPO4 crystallizes in the orthorhombic C222_1 space group. Mn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with two equivalent Mn(1)O6 octahedra. Both Mn(1)-O(2) bond lengths are 1.89 Å. There are two shorter (2.16 Å) and two longer (2.17 Å) Mn(1)-O(1) bond lengths. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. Both P(1)-O(1) bond lengths are 1.57 Å. Both P(1)-O(2) bond lengths are 1.54 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(1) atom.