Cu3(OH)2V2O7 crystallizes in the monoclinic C2/m space group. The structure consists of four 1333-74-0 atoms inside a V2(CuO3)3 framework. In the V2(CuO3)3 framework, V(1) is bonded to one O(2), one O(4), and two equivalent O(3) atoms to form VO4 tetrahedra that share corners with two equivalent Cu(2)O6 octahedra, corners with four equivalent Cu(1)O6 octahedra, and  a cornercorner with one V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-53°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CuO6 octahedra that share corners with four equivalent V(1)O4 tetrahedra, edges with two equivalent Cu(1)O6 octahedra, and edges with two equivalent Cu(2)O6 octahedra. In the second Cu site, Cu(2) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form CuO6 octahedra that share corners with four equivalent V(1)O4 tetrahedra and edges with four equivalent Cu(1)O6 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Cu(2) and two equivalent Cu(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(1) and two equivalent Cu(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(1), one Cu(1), and one Cu(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent V(1) atoms.
Cu3(OH)2V2O7 crystallizes in the monoclinic C2/m space group. The structure consists of four 1333-74-0 atoms inside a V2(CuO3)3 framework. In the V2(CuO3)3 framework, V(1) is bonded to one O(2), one O(4), and two equivalent O(3) atoms to form VO4 tetrahedra that share corners with two equivalent Cu(2)O6 octahedra, corners with four equivalent Cu(1)O6 octahedra, and  a cornercorner with one V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-53°. The V(1)-O(2) bond length is 1.84 Å. The V(1)-O(4) bond length is 1.80 Å. Both V(1)-O(3) bond lengths are 1.69 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CuO6 octahedra that share corners with four equivalent V(1)O4 tetrahedra, edges with two equivalent Cu(1)O6 octahedra, and edges with two equivalent Cu(2)O6 octahedra. Both Cu(1)-O(1) bond lengths are 1.86 Å. Both Cu(1)-O(2) bond lengths are 1.91 Å. Both Cu(1)-O(3) bond lengths are 2.57 Å. In the second Cu site, Cu(2) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form CuO6 octahedra that share corners with four equivalent V(1)O4 tetrahedra and edges with four equivalent Cu(1)O6 octahedra. Both Cu(2)-O(1) bond lengths are 1.89 Å. All Cu(2)-O(3) bond lengths are 2.09 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Cu(2) and two equivalent Cu(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(1) and two equivalent Cu(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(1), one Cu(1), and one Cu(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent V(1) atoms.