MnPO3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), one O(4), one O(6), and two equivalent O(5) atoms to form distorted edge-sharing MnO6 octahedra. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(6), and two equivalent O(2) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a trigonal non-coplanar geometry to one O(2), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a trigonal non-coplanar geometry to one O(1), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 4-coordinate geometry to one Mn(2), two equivalent Mn(1), and one P(2) atom. In the second O site, O(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one P(2) atom. In the third O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one Mn(2), and one P(2) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Mn(2) and one P(1) atom. In the fifth O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(1) atom. In the sixth O site, O(4) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom.
MnPO3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), one O(4), one O(6), and two equivalent O(5) atoms to form distorted edge-sharing MnO6 octahedra. The Mn(1)-O(1) bond length is 2.20 Å. The Mn(1)-O(3) bond length is 2.28 Å. The Mn(1)-O(4) bond length is 2.09 Å. The Mn(1)-O(6) bond length is 2.20 Å. There is one shorter (2.21 Å) and one longer (2.41 Å) Mn(1)-O(5) bond length. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(6), and two equivalent O(2) atoms. The Mn(2)-O(1) bond length is 2.17 Å. The Mn(2)-O(3) bond length is 2.15 Å. The Mn(2)-O(5) bond length is 2.71 Å. The Mn(2)-O(6) bond length is 2.19 Å. There is one shorter (2.12 Å) and one longer (2.20 Å) Mn(2)-O(2) bond length. There are two inequivalent P sites. In the first P site, P(1) is bonded in a trigonal non-coplanar geometry to one O(2), one O(3), and one O(4) atom. 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 1.53 Å. In the second P site, P(2) is bonded in a trigonal non-coplanar geometry to one O(1), one O(5), and one O(6) atom. The P(2)-O(1) bond length is 1.56 Å. The P(2)-O(5) bond length is 1.58 Å. The P(2)-O(6) bond length is 1.57 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 4-coordinate geometry to one Mn(2), two equivalent Mn(1), and one P(2) atom. In the second O site, O(6) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one P(2) atom. In the third O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one Mn(2), and one P(2) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Mn(2) and one P(1) atom. In the fifth O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(1) atom. In the sixth O site, O(4) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom.