The material described by Cu3(OH)2V2O7(H2O)2 crystallizes in the monoclinic Cc space group. The structure consists of eight water molecules inside a Cu3(OH)2V2O7 framework. In the Cu3(OH)2V2O7 framework, there are two inequivalent V sites. In the first V site, V(1) is bonded to one O(2), one O(4), one O(8), and one O(9) atom to form VO4 tetrahedra that share corners with two equivalent Cu(1)O6 octahedra and  a cornercorner with one V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-54°. In the second V site, V(2) is bonded to one O(1), one O(3), one O(7), and one O(9) atom to form VO4 tetrahedra that share corners with two equivalent Cu(1)O6 octahedra and  a cornercorner with one V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-54°. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form CuO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra and corners with two equivalent V(2)O4 tetrahedra. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the third Cu site, Cu(3) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(5) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(6) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one V(2), one Cu(1), and one Cu(3) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Cu(1), and one Cu(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(2), one Cu(2), and one Cu(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one V(1), one Cu(2), and one Cu(3) atom. In the fifth O site, O(5) is bonded to one Cu(1), one Cu(2), one Cu(3), and one H(1) atom to form distorted corner-sharing OCu3H tetrahedra. In the sixth O site, O(6) is bonded to one Cu(1), one Cu(2), one Cu(3), and one H(2) atom to form distorted corner-sharing OCu3H tetrahedra. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one V(2), one Cu(1), and one Cu(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one V(1), one Cu(1), and one Cu(3) atom. In the ninth O site, O(9) is bonded in a linear geometry to one V(1) and one V(2) atom. is represented by the CIF file [CIF]
data_V2Cu3H6O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.952
_cell_length_b   8.979
_cell_length_c   10.039
_cell_angle_alpha   70.365
_cell_angle_beta   72.757
_cell_angle_gamma   70.646
_symmetry_Int_Tables_number   1
_cell_volume   466.308
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  V  V0  1  0.401  0.380  0.370  1.0
  V  V1  1  0.850  0.880  0.870  1.0
  V  V2  1  0.650  0.120  0.131  1.0
  V  V3  1  0.099  0.620  0.631  1.0
  Cu  Cu4  1  0.752  0.499  0.500  1.0
  Cu  Cu5  1  0.250  0.999  0.000  1.0
  Cu  Cu6  1  0.498  0.252  0.747  1.0
  Cu  Cu7  1  0.503  0.752  0.247  1.0
  Cu  Cu8  1  0.996  0.249  0.755  1.0
  Cu  Cu9  1  0.001  0.749  0.255  1.0
  H  H10  1  0.882  0.520  0.221  1.0
  H  H11  1  0.377  0.020  0.721  1.0
  H  H12  1  0.125  0.979  0.281  1.0
  H  H13  1  0.615  0.479  0.781  1.0
  H  H14  1  0.575  0.643  0.926  1.0
  H  H15  1  0.856  0.143  0.426  1.0
  H  H16  1  0.110  0.104  0.454  1.0
  H  H17  1  0.332  0.604  0.954  1.0
  H  H18  1  0.933  0.343  0.080  1.0
  H  H19  1  0.645  0.843  0.580  1.0
  H  H20  1  0.387  0.878  0.560  1.0
  H  H21  1  0.176  0.378  0.060  1.0
  O  O22  1  0.926  0.155  0.022  1.0
  O  O23  1  0.898  0.655  0.522  1.0
  O  O24  1  0.603  0.344  0.479  1.0
  O  O25  1  0.575  0.844  0.979  1.0
  O  O26  1  0.174  0.410  0.733  1.0
  O  O27  1  0.682  0.910  0.233  1.0
  O  O28  1  0.817  0.090  0.768  1.0
  O  O29  1  0.325  0.590  0.268  1.0
  O  O30  1  0.809  0.596  0.287  1.0
  O  O31  1  0.308  0.096  0.787  1.0
  O  O32  1  0.193  0.904  0.213  1.0
  O  O33  1  0.690  0.404  0.713  1.0
  O  O34  1  0.354  0.676  0.528  1.0
  O  O35  1  0.443  0.176  0.028  1.0
  O  O36  1  0.057  0.824  0.973  1.0
  O  O37  1  0.147  0.324  0.473  1.0
  O  O38  1  0.553  0.250  0.250  1.0
  O  O39  1  0.947  0.750  0.750  1.0
  O  O40  1  0.506  0.560  0.921  1.0
  O  O41  1  0.013  0.060  0.421  1.0
  O  O42  1  0.486  0.925  0.589  1.0
  O  O43  1  0.001  0.425  0.089  1.0
[/CIF]
.
The material described by Cu3(OH)2V2O7(H2O)2 crystallizes in the monoclinic Cc space group. The structure consists of eight water molecules inside a Cu3(OH)2V2O7 framework. In the Cu3(OH)2V2O7 framework, there are two inequivalent V sites. In the first V site, V(1) is bonded to one O(2), one O(4), one O(8), and one O(9) atom to form VO4 tetrahedra that share corners with two equivalent Cu(1)O6 octahedra and  a cornercorner with one V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-54°. In the second V site, V(2) is bonded to one O(1), one O(3), one O(7), and one O(9) atom to form VO4 tetrahedra that share corners with two equivalent Cu(1)O6 octahedra and  a cornercorner with one V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-54°. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form CuO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra and corners with two equivalent V(2)O4 tetrahedra. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the third Cu site, Cu(3) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(5) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(6) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one V(2), one Cu(1), and one Cu(3) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Cu(1), and one Cu(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(2), one Cu(2), and one Cu(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one V(1), one Cu(2), and one Cu(3) atom. In the fifth O site, O(5) is bonded to one Cu(1), one Cu(2), one Cu(3), and one H(1) atom to form distorted corner-sharing OCu3H tetrahedra. In the sixth O site, O(6) is bonded to one Cu(1), one Cu(2), one Cu(3), and one H(2) atom to form distorted corner-sharing OCu3H tetrahedra. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one V(2), one Cu(1), and one Cu(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one V(1), one Cu(1), and one Cu(3) atom. In the ninth O site, O(9) is bonded in a linear geometry to one V(1) and one V(2) atom. is represented by the CIF file [CIF]
data_V2Cu3H6O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.952
_cell_length_b   8.979
_cell_length_c   10.039
_cell_angle_alpha   70.365
_cell_angle_beta   72.757
_cell_angle_gamma   70.646
_symmetry_Int_Tables_number   1
_cell_volume   466.308
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  V  V0  1  0.401  0.380  0.370  1.0
  V  V1  1  0.850  0.880  0.870  1.0
  V  V2  1  0.650  0.120  0.131  1.0
  V  V3  1  0.099  0.620  0.631  1.0
  Cu  Cu4  1  0.752  0.499  0.500  1.0
  Cu  Cu5  1  0.250  0.999  0.000  1.0
  Cu  Cu6  1  0.498  0.252  0.747  1.0
  Cu  Cu7  1  0.503  0.752  0.247  1.0
  Cu  Cu8  1  0.996  0.249  0.755  1.0
  Cu  Cu9  1  0.001  0.749  0.255  1.0
  H  H10  1  0.882  0.520  0.221  1.0
  H  H11  1  0.377  0.020  0.721  1.0
  H  H12  1  0.125  0.979  0.281  1.0
  H  H13  1  0.615  0.479  0.781  1.0
  H  H14  1  0.575  0.643  0.926  1.0
  H  H15  1  0.856  0.143  0.426  1.0
  H  H16  1  0.110  0.104  0.454  1.0
  H  H17  1  0.332  0.604  0.954  1.0
  H  H18  1  0.933  0.343  0.080  1.0
  H  H19  1  0.645  0.843  0.580  1.0
  H  H20  1  0.387  0.878  0.560  1.0
  H  H21  1  0.176  0.378  0.060  1.0
  O  O22  1  0.926  0.155  0.022  1.0
  O  O23  1  0.898  0.655  0.522  1.0
  O  O24  1  0.603  0.344  0.479  1.0
  O  O25  1  0.575  0.844  0.979  1.0
  O  O26  1  0.174  0.410  0.733  1.0
  O  O27  1  0.682  0.910  0.233  1.0
  O  O28  1  0.817  0.090  0.768  1.0
  O  O29  1  0.325  0.590  0.268  1.0
  O  O30  1  0.809  0.596  0.287  1.0
  O  O31  1  0.308  0.096  0.787  1.0
  O  O32  1  0.193  0.904  0.213  1.0
  O  O33  1  0.690  0.404  0.713  1.0
  O  O34  1  0.354  0.676  0.528  1.0
  O  O35  1  0.443  0.176  0.028  1.0
  O  O36  1  0.057  0.824  0.973  1.0
  O  O37  1  0.147  0.324  0.473  1.0
  O  O38  1  0.553  0.250  0.250  1.0
  O  O39  1  0.947  0.750  0.750  1.0
  O  O40  1  0.506  0.560  0.921  1.0
  O  O41  1  0.013  0.060  0.421  1.0
  O  O42  1  0.486  0.925  0.589  1.0
  O  O43  1  0.001  0.425  0.089  1.0
[/CIF]
.