ZnSn3P3O13 crystallizes in the monoclinic P2_1/m space group. Zn(1) is bonded to one O(9), two equivalent O(4), and two equivalent O(8) atoms to form distorted ZnO5 trigonal bipyramids that share corners with two equivalent Sn(3)O6 octahedra, corners with three equivalent Sn(1)O6 pentagonal pyramids, corners with three equivalent P(3)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 64°. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(1), one O(5), one O(6), one O(9), and two equivalent O(8) atoms to form distorted SnO6 pentagonal pyramids that share corners with two equivalent Sn(3)O6 octahedra,  a cornercorner with one Sn(2)O5 square pyramid,  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with three equivalent Zn(1)O5 trigonal bipyramids, and  an edgeedge with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 48°. In the second Sn site, Sn(2) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form distorted SnO5 square pyramids that share  a cornercorner with one Sn(1)O6 pentagonal pyramid,  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 Sn site, Sn(3) is bonded to two equivalent O(10), two equivalent O(4), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent Sn(1)O6 pentagonal pyramids, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with two equivalent Zn(1)O5 trigonal bipyramids, and edges with two equivalent Sn(3)O6 octahedra. 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 Sn(1)O6 pentagonal pyramid and corners with three equivalent Sn(2)O5 square pyramids. 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 Sn(3)O6 octahedra, corners with two equivalent Sn(1)O6 pentagonal pyramids,  a cornercorner with one Sn(2)O5 square pyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. 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 Sn(3)O6 octahedra,  a cornercorner with one Sn(2)O5 square pyramid, corners with three equivalent Zn(1)O5 trigonal bipyramids, and  an edgeedge with one Sn(1)O6 pentagonal pyramid. 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 single-bond geometry to two equivalent Sn(3) and one P(2) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Sn(1), one Sn(2), and one P(3) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom. In the fourth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one Sn(3), and one P(3) atom. In the sixth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a 3-coordinate geometry to one Sn(1) and two equivalent Sn(3) atoms. In the eighth O site, O(7) is bonded in a bent 150 degrees geometry to one Sn(2) and one P(1) atom. In the ninth O site, O(8) is bonded in a distorted trigonal planar geometry to one Zn(1), one Sn(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a 3-coordinate geometry to one Zn(1), one Sn(1), and one P(3) atom.
ZnSn3P3O13 crystallizes in the monoclinic P2_1/m space group. Zn(1) is bonded to one O(9), two equivalent O(4), and two equivalent O(8) atoms to form distorted ZnO5 trigonal bipyramids that share corners with two equivalent Sn(3)O6 octahedra, corners with three equivalent Sn(1)O6 pentagonal pyramids, corners with three equivalent P(3)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 64°. The Zn(1)-O(9) bond length is 1.99 Å. Both Zn(1)-O(4) bond lengths are 2.35 Å. Both Zn(1)-O(8) bond lengths are 2.26 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(1), one O(5), one O(6), one O(9), and two equivalent O(8) atoms to form distorted SnO6 pentagonal pyramids that share corners with two equivalent Sn(3)O6 octahedra,  a cornercorner with one Sn(2)O5 square pyramid,  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with three equivalent Zn(1)O5 trigonal bipyramids, and  an edgeedge with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 48°. The Sn(1)-O(1) bond length is 2.11 Å. The Sn(1)-O(5) bond length is 2.05 Å. The Sn(1)-O(6) bond length is 1.95 Å. The Sn(1)-O(9) bond length is 2.32 Å. Both Sn(1)-O(8) bond lengths are 2.16 Å. In the second Sn site, Sn(2) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form distorted SnO5 square pyramids that share  a cornercorner with one Sn(1)O6 pentagonal pyramid,  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 Sn(2)-O(1) bond length is 2.48 Å. The Sn(2)-O(3) bond length is 2.13 Å. The Sn(2)-O(7) bond length is 2.12 Å. Both Sn(2)-O(2) bond lengths are 2.14 Å. In the third Sn site, Sn(3) is bonded to two equivalent O(10), two equivalent O(4), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent Sn(1)O6 pentagonal pyramids, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with two equivalent Zn(1)O5 trigonal bipyramids, and edges with two equivalent Sn(3)O6 octahedra. Both Sn(3)-O(10) bond lengths are 2.46 Å. Both Sn(3)-O(4) bond lengths are 2.53 Å. Both Sn(3)-O(6) bond lengths are 2.38 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 Sn(1)O6 pentagonal pyramid and corners with three equivalent Sn(2)O5 square pyramids. The P(1)-O(5) bond length is 1.56 Å. The P(1)-O(7) bond length is 1.55 Å. Both P(1)-O(2) bond lengths are 1.55 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 Sn(3)O6 octahedra, corners with two equivalent Sn(1)O6 pentagonal pyramids,  a cornercorner with one Sn(2)O5 square pyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. The P(2)-O(10) bond length is 1.53 Å. The P(2)-O(3) bond length is 1.53 Å. Both P(2)-O(8) bond lengths are 1.58 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 Sn(3)O6 octahedra,  a cornercorner with one Sn(2)O5 square pyramid, corners with three equivalent Zn(1)O5 trigonal bipyramids, and  an edgeedge with one Sn(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 54°. The P(3)-O(1) bond length is 1.58 Å. The P(3)-O(9) bond length is 1.59 Å. Both P(3)-O(4) bond lengths are 1.55 Å. There are ten inequivalent O sites. In the first O site, O(10) is bonded in a distorted single-bond geometry to two equivalent Sn(3) and one P(2) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Sn(1), one Sn(2), and one P(3) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom. In the fourth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one Sn(3), and one P(3) atom. In the sixth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a 3-coordinate geometry to one Sn(1) and two equivalent Sn(3) atoms. In the eighth O site, O(7) is bonded in a bent 150 degrees geometry to one Sn(2) and one P(1) atom. In the ninth O site, O(8) is bonded in a distorted trigonal planar geometry to one Zn(1), one Sn(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a 3-coordinate geometry to one Zn(1), one Sn(1), and one P(3) atom.