W5ZnO7 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(2), two equivalent O(3), and three equivalent O(1) atoms to form distorted edge-sharing WO6 octahedra. In the second W site, W(2) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. In the third W site, W(3) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. Zn(1) is bonded in a see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(3) is bonded to two equivalent W(1), two equivalent W(2), and one Zn(1) atom to form distorted OZnW4 trigonal bipyramids that share corners with six equivalent O(1)W6 octahedra,  a cornercorner with one O(3)ZnW4 trigonal bipyramid,  an edgeedge with one O(1)W6 octahedra, edges with two equivalent O(4)Zn2W2 tetrahedra, and edges with two equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 7-72°. In the second O site, O(4) is bonded to two equivalent W(2) and two equivalent Zn(1) atoms to form OZn2W2 tetrahedra that share corners with two equivalent O(1)W6 octahedra, corners with two equivalent O(4)Zn2W2 tetrahedra, and edges with four equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 9°. In the third O site, O(1) is bonded to one W(2), two equivalent W(3), and three equivalent W(1) atoms to form distorted OW6 octahedra that share corners with two equivalent O(1)W6 octahedra,  a cornercorner with one O(4)Zn2W2 tetrahedra, corners with six equivalent O(3)ZnW4 trigonal bipyramids, edges with five equivalent O(1)W6 octahedra, and  an edgeedge with one O(3)ZnW4 trigonal bipyramid. The corner-sharing octahedra are not tilted. In the fourth O site, O(2) is bonded in a trigonal non-coplanar geometry to one W(1) and two equivalent W(2) atoms.
W5ZnO7 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(2), two equivalent O(3), and three equivalent O(1) atoms to form distorted edge-sharing WO6 octahedra. The W(1)-O(2) bond length is 2.12 Å. Both W(1)-O(3) bond lengths are 2.29 Å. There are two shorter (2.21 Å) and one longer (2.45 Å) W(1)-O(1) bond length. In the second W site, W(2) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. The W(2)-O(1) bond length is 2.67 Å. The W(2)-O(4) bond length is 2.11 Å. Both W(2)-O(2) bond lengths are 2.12 Å. Both W(2)-O(3) bond lengths are 2.38 Å. In the third W site, W(3) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. All W(3)-O(1) bond lengths are 2.53 Å. Zn(1) is bonded in a see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. Both Zn(1)-O(3) bond lengths are 2.18 Å. Both Zn(1)-O(4) bond lengths are 2.04 Å. There are four inequivalent O sites. In the first O site, O(3) is bonded to two equivalent W(1), two equivalent W(2), and one Zn(1) atom to form distorted OZnW4 trigonal bipyramids that share corners with six equivalent O(1)W6 octahedra,  a cornercorner with one O(3)ZnW4 trigonal bipyramid,  an edgeedge with one O(1)W6 octahedra, edges with two equivalent O(4)Zn2W2 tetrahedra, and edges with two equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 7-72°. In the second O site, O(4) is bonded to two equivalent W(2) and two equivalent Zn(1) atoms to form OZn2W2 tetrahedra that share corners with two equivalent O(1)W6 octahedra, corners with two equivalent O(4)Zn2W2 tetrahedra, and edges with four equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 9°. In the third O site, O(1) is bonded to one W(2), two equivalent W(3), and three equivalent W(1) atoms to form distorted OW6 octahedra that share corners with two equivalent O(1)W6 octahedra,  a cornercorner with one O(4)Zn2W2 tetrahedra, corners with six equivalent O(3)ZnW4 trigonal bipyramids, edges with five equivalent O(1)W6 octahedra, and  an edgeedge with one O(3)ZnW4 trigonal bipyramid. The corner-sharing octahedra are not tilted. In the fourth O site, O(2) is bonded in a trigonal non-coplanar geometry to one W(1) and two equivalent W(2) atoms.