NaMn3P3O13 crystallizes in the monoclinic P2_1/m space group. Na(1) is bonded in a 7-coordinate geometry to one O(9), two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(5), one O(6), one O(9), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra,  a cornercorner with one Mn(2)O5 square pyramid,  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form MnO5 square pyramids that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. In the third Mn site, Mn(3) is bonded to two equivalent O(10), two equivalent O(4), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(7), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra and corners with three equivalent Mn(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 37°. In the second P site, P(2) is bonded to one O(10), one O(3), and two equivalent O(8) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and  a cornercorner with one Mn(2)O5 square pyramid. The corner-sharing octahedral tilt angles range from 42-55°. In the third P site, P(3) is bonded to one O(1), one O(9), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(3)O6 octahedra,  a cornercorner with one Mn(2)O5 square pyramid, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are ten inequivalent O sites. In the first O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Mn(3) and one P(2) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(3) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Mn(2), and one P(1) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(1), one Mn(3), and one P(3) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent Mn(3) atoms. In the eighth O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the ninth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one P(3) atom.
NaMn3P3O13 crystallizes in the monoclinic P2_1/m space group. Na(1) is bonded in a 7-coordinate geometry to one O(9), two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms. The Na(1)-O(9) bond length is 2.68 Å. Both Na(1)-O(2) bond lengths are 2.66 Å. Both Na(1)-O(4) bond lengths are 2.42 Å. Both Na(1)-O(8) bond lengths are 2.54 Å. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(5), one O(6), one O(9), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra,  a cornercorner with one Mn(2)O5 square pyramid,  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. The Mn(1)-O(1) bond length is 2.14 Å. The Mn(1)-O(5) bond length is 1.90 Å. The Mn(1)-O(6) bond length is 1.93 Å. The Mn(1)-O(9) bond length is 2.01 Å. Both Mn(1)-O(8) bond lengths are 1.93 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form MnO5 square pyramids that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. The Mn(2)-O(1) bond length is 2.01 Å. The Mn(2)-O(3) bond length is 1.94 Å. The Mn(2)-O(7) bond length is 2.04 Å. Both Mn(2)-O(2) bond lengths are 1.93 Å. In the third Mn site, Mn(3) is bonded to two equivalent O(10), two equivalent O(4), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. Both Mn(3)-O(10) bond lengths are 2.12 Å. Both Mn(3)-O(4) bond lengths are 1.99 Å. Both Mn(3)-O(6) bond lengths are 2.01 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(7), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra and corners with three equivalent Mn(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 37°. The P(1)-O(5) bond length is 1.56 Å. The P(1)-O(7) bond length is 1.52 Å. Both P(1)-O(2) bond lengths are 1.56 Å. In the second P site, P(2) is bonded to one O(10), one O(3), and two equivalent O(8) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and  a cornercorner with one Mn(2)O5 square pyramid. The corner-sharing octahedral tilt angles range from 42-55°. The P(2)-O(10) bond length is 1.57 Å. The P(2)-O(3) bond length is 1.52 Å. Both P(2)-O(8) bond lengths are 1.55 Å. In the third P site, P(3) is bonded to one O(1), one O(9), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(3)O6 octahedra,  a cornercorner with one Mn(2)O5 square pyramid, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 49°. The P(3)-O(1) bond length is 1.57 Å. The P(3)-O(9) bond length is 1.56 Å. Both P(3)-O(4) bond lengths are 1.54 Å. There are ten inequivalent O sites. In the first O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Mn(3) and one P(2) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(3) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Mn(2), and one P(1) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(1), one Mn(3), and one P(3) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent Mn(3) atoms. In the eighth O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the ninth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one P(3) atom.