Mn3ZnP3O13 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(5), one O(6), one O(9), and two equivalent O(8) atoms. 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 trigonal bipyramids that share  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. 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 Zn(1)O5 square pyramids, 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. Zn(1) is bonded to one O(9), two equivalent O(4), and two equivalent O(8) atoms to form distorted ZnO5 square pyramids that share corners with two equivalent Mn(3)O6 octahedra, corners with three equivalent P(3)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 59°. 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 corners with three equivalent Mn(2)O5 trigonal bipyramids. 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(3)O6 octahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Zn(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 52°. 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, corners with three equivalent Zn(1)O5 square pyramids, and  a cornercorner with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 54°. 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 distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(3) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(1) atom. In the fourth O site, O(3) is bonded in a linear geometry to one Mn(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a trigonal planar geometry to one Mn(3), one Zn(1), 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 Mn(1), one Zn(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a 3-coordinate geometry to one Mn(1), one Zn(1), and one P(3) atom.
Mn3ZnP3O13 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(5), one O(6), one O(9), and two equivalent O(8) atoms. The Mn(1)-O(1) bond length is 2.10 Å. The Mn(1)-O(5) bond length is 1.95 Å. The Mn(1)-O(6) bond length is 1.99 Å. The Mn(1)-O(9) bond length is 2.35 Å. Both Mn(1)-O(8) bond lengths are 1.92 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 trigonal bipyramids that share  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 Mn(2)-O(1) bond length is 1.97 Å. The Mn(2)-O(3) bond length is 1.99 Å. The Mn(2)-O(7) bond length is 2.00 Å. Both Mn(2)-O(2) bond lengths are 1.91 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 Zn(1)O5 square pyramids, 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. Both Mn(3)-O(10) bond lengths are 2.11 Å. Both Mn(3)-O(4) bond lengths are 2.19 Å. Both Mn(3)-O(6) bond lengths are 1.96 Å. Zn(1) is bonded to one O(9), two equivalent O(4), and two equivalent O(8) atoms to form distorted ZnO5 square pyramids that share corners with two equivalent Mn(3)O6 octahedra, corners with three equivalent P(3)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 59°. The Zn(1)-O(9) bond length is 2.00 Å. Both Zn(1)-O(4) bond lengths are 2.21 Å. Both Zn(1)-O(8) bond lengths are 2.41 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 corners with three equivalent Mn(2)O5 trigonal bipyramids. The P(1)-O(5) bond length is 1.54 Å. The P(1)-O(7) bond length is 1.52 Å. Both P(1)-O(2) bond lengths are 1.57 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(3)O6 octahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Zn(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 52°. The P(2)-O(10) bond length is 1.57 Å. The P(2)-O(3) bond length is 1.51 Å. Both P(2)-O(8) bond lengths are 1.56 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, corners with three equivalent Zn(1)O5 square pyramids, and  a cornercorner with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 54°. The P(3)-O(1) bond length is 1.56 Å. The P(3)-O(9) bond length is 1.54 Å. Both P(3)-O(4) bond lengths are 1.56 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 distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(3) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(1) atom. In the fourth O site, O(3) is bonded in a linear geometry to one Mn(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a trigonal planar geometry to one Mn(3), one Zn(1), 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 Mn(1), one Zn(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a 3-coordinate geometry to one Mn(1), one Zn(1), and one P(3) atom.