Zn(CuO2)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(2), two equivalent O(1), and two equivalent O(3) atoms to form distorted CuO5 square pyramids that share corners with two equivalent Cu(1)O5 square pyramids, corners with two equivalent Zn(1)O5 square pyramids, corners with four equivalent Cu(2)O5 trigonal bipyramids,  an edgeedge with one Cu(1)O5 square pyramid, and edges with two equivalent Zn(1)O5 square pyramids. In the second Cu site, Cu(2) is bonded to one O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted CuO5 trigonal bipyramids that share corners with three equivalent Zn(1)O5 square pyramids, corners with four equivalent Cu(1)O5 square pyramids, corners with two equivalent Cu(2)O5 trigonal bipyramids,  an edgeedge with one Zn(1)O5 square pyramid, and  an edgeedge with one Cu(2)O5 trigonal bipyramid. Zn(1) is bonded to one O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted ZnO5 square pyramids that share corners with two equivalent Cu(1)O5 square pyramids, corners with three equivalent Cu(2)O5 trigonal bipyramids, edges with two equivalent Cu(1)O5 square pyramids, edges with two equivalent Zn(1)O5 square pyramids, and  an edgeedge with one Cu(2)O5 trigonal bipyramid. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Cu(2), two equivalent Cu(1), and one Zn(1) atom to form distorted OZnCu3 trigonal pyramids that share corners with two equivalent O(4)Zn2Cu2 tetrahedra, corners with two equivalent O(3)Zn2Cu2 trigonal pyramids, corners with two equivalent O(1)ZnCu3 trigonal pyramids,  an edgeedge with one O(4)Zn2Cu2 tetrahedra, and edges with two equivalent O(3)Zn2Cu2 trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Cu(1) and two equivalent Cu(2) atoms. In the third O site, O(3) is bonded to two equivalent Cu(1) and two equivalent Zn(1) atoms to form distorted OZn2Cu2 trigonal pyramids that share corners with two equivalent O(4)Zn2Cu2 tetrahedra, corners with two equivalent O(3)Zn2Cu2 trigonal pyramids, corners with two equivalent O(1)ZnCu3 trigonal pyramids,  an edgeedge with one O(4)Zn2Cu2 tetrahedra,  an edgeedge with one O(3)Zn2Cu2 trigonal pyramid, and edges with two equivalent O(1)ZnCu3 trigonal pyramids. In the fourth O site, O(4) is bonded to two equivalent Cu(2) and two equivalent Zn(1) atoms to form distorted OZn2Cu2 tetrahedra that share corners with two equivalent O(4)Zn2Cu2 tetrahedra, corners with two equivalent O(3)Zn2Cu2 trigonal pyramids, corners with two equivalent O(1)ZnCu3 trigonal pyramids,  an edgeedge with one O(4)Zn2Cu2 tetrahedra,  an edgeedge with one O(3)Zn2Cu2 trigonal pyramid, and  an edgeedge with one O(1)ZnCu3 trigonal pyramid.
Zn(CuO2)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(2), two equivalent O(1), and two equivalent O(3) atoms to form distorted CuO5 square pyramids that share corners with two equivalent Cu(1)O5 square pyramids, corners with two equivalent Zn(1)O5 square pyramids, corners with four equivalent Cu(2)O5 trigonal bipyramids,  an edgeedge with one Cu(1)O5 square pyramid, and edges with two equivalent Zn(1)O5 square pyramids. The Cu(1)-O(2) bond length is 1.82 Å. There is one shorter (1.84 Å) and one longer (2.43 Å) Cu(1)-O(1) bond length. There is one shorter (1.90 Å) and one longer (1.94 Å) Cu(1)-O(3) bond length. In the second Cu site, Cu(2) is bonded to one O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted CuO5 trigonal bipyramids that share corners with three equivalent Zn(1)O5 square pyramids, corners with four equivalent Cu(1)O5 square pyramids, corners with two equivalent Cu(2)O5 trigonal bipyramids,  an edgeedge with one Zn(1)O5 square pyramid, and  an edgeedge with one Cu(2)O5 trigonal bipyramid. The Cu(2)-O(1) bond length is 1.87 Å. There is one shorter (1.84 Å) and one longer (2.25 Å) Cu(2)-O(2) bond length. There is one shorter (1.89 Å) and one longer (1.98 Å) Cu(2)-O(4) bond length. Zn(1) is bonded to one O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted ZnO5 square pyramids that share corners with two equivalent Cu(1)O5 square pyramids, corners with three equivalent Cu(2)O5 trigonal bipyramids, edges with two equivalent Cu(1)O5 square pyramids, edges with two equivalent Zn(1)O5 square pyramids, and  an edgeedge with one Cu(2)O5 trigonal bipyramid. The Zn(1)-O(1) bond length is 2.11 Å. There is one shorter (2.03 Å) and one longer (2.23 Å) Zn(1)-O(3) bond length. Both Zn(1)-O(4) bond lengths are 2.05 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Cu(2), two equivalent Cu(1), and one Zn(1) atom to form distorted OZnCu3 trigonal pyramids that share corners with two equivalent O(4)Zn2Cu2 tetrahedra, corners with two equivalent O(3)Zn2Cu2 trigonal pyramids, corners with two equivalent O(1)ZnCu3 trigonal pyramids,  an edgeedge with one O(4)Zn2Cu2 tetrahedra, and edges with two equivalent O(3)Zn2Cu2 trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Cu(1) and two equivalent Cu(2) atoms. In the third O site, O(3) is bonded to two equivalent Cu(1) and two equivalent Zn(1) atoms to form distorted OZn2Cu2 trigonal pyramids that share corners with two equivalent O(4)Zn2Cu2 tetrahedra, corners with two equivalent O(3)Zn2Cu2 trigonal pyramids, corners with two equivalent O(1)ZnCu3 trigonal pyramids,  an edgeedge with one O(4)Zn2Cu2 tetrahedra,  an edgeedge with one O(3)Zn2Cu2 trigonal pyramid, and edges with two equivalent O(1)ZnCu3 trigonal pyramids. In the fourth O site, O(4) is bonded to two equivalent Cu(2) and two equivalent Zn(1) atoms to form distorted OZn2Cu2 tetrahedra that share corners with two equivalent O(4)Zn2Cu2 tetrahedra, corners with two equivalent O(3)Zn2Cu2 trigonal pyramids, corners with two equivalent O(1)ZnCu3 trigonal pyramids,  an edgeedge with one O(4)Zn2Cu2 tetrahedra,  an edgeedge with one O(3)Zn2Cu2 trigonal pyramid, and  an edgeedge with one O(1)ZnCu3 trigonal pyramid.