The structure described by Dy2Cu(WO4)4 crystallizes in the monoclinic C2/c space group. Dy(1) is bonded to one O(2), one O(3), one O(4), one O(6), one O(7), and two equivalent O(8) atoms to form distorted DyO7 pentagonal bipyramids that share corners with three equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra,  an edgeedge with one W(1)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra, and  an edgeedge with one Dy(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 31-57°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), one O(4), one O(8), and two equivalent O(1) atoms to form distorted WO6 octahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent W(1)O6 octahedra, corners with three equivalent Dy(1)O7 pentagonal bipyramids,  an edgeedge with one W(2)O6 octahedra, and  an edgeedge with one Dy(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 11-52°. In the second W site, W(2) is bonded to one O(3), one O(4), one O(6), one O(7), and two equivalent O(5) atoms to form distorted WO6 octahedra that share corners with three equivalent Cu(1)O6 octahedra, corners with four equivalent Dy(1)O7 pentagonal bipyramids,  an edgeedge with one W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. Cu(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form CuO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with six equivalent W(2)O6 octahedra, and edges with two equivalent Dy(1)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 50-54°. There are eight inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal planar geometry to one Dy(1), one W(1), and one Cu(1) atom. In the second O site, O(3) is bonded in a trigonal planar geometry to one Dy(1), one W(1), and one W(2) atom. In the third O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Dy(1), one W(1), and one W(2) atom. In the fourth O site, O(5) is bonded in a trigonal planar geometry to two equivalent W(2) and one Cu(1) atom. In the fifth O site, O(6) is bonded in a distorted trigonal planar geometry to one Dy(1), one W(2), and one Cu(1) atom. In the sixth O site, O(7) is bonded in a bent 150 degrees geometry to one Dy(1) and one W(2) atom. In the seventh O site, O(8) is bonded in a trigonal non-coplanar geometry to two equivalent Dy(1) and one W(1) atom. In the eighth O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. is represented by the CIF card [CIF]
data_Dy2Cu(WO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.095
_cell_length_b   10.095
_cell_length_c   11.339
_cell_angle_alpha   70.303
_cell_angle_beta   70.303
_cell_angle_gamma   32.730
_symmetry_Int_Tables_number   1
_cell_volume   585.019
_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
  Dy  Dy0  1  0.483  0.815  0.045  1.0
  Dy  Dy1  1  0.517  0.185  0.955  1.0
  Dy  Dy2  1  0.185  0.517  0.455  1.0
  Dy  Dy3  1  0.815  0.483  0.545  1.0
  Cu  Cu4  1  0.662  0.338  0.250  1.0
  Cu  Cu5  1  0.338  0.662  0.750  1.0
  W  W6  1  0.691  0.935  0.285  1.0
  W  W7  1  0.309  0.065  0.715  1.0
  W  W8  1  0.065  0.309  0.215  1.0
  W  W9  1  0.935  0.691  0.785  1.0
  W  W10  1  0.756  0.133  0.591  1.0
  W  W11  1  0.244  0.867  0.409  1.0
  W  W12  1  0.867  0.244  0.909  1.0
  W  W13  1  0.133  0.756  0.091  1.0
  O  O14  1  0.412  0.083  0.265  1.0
  O  O15  1  0.588  0.917  0.735  1.0
  O  O16  1  0.917  0.588  0.235  1.0
  O  O17  1  0.083  0.412  0.765  1.0
  O  O18  1  0.537  0.212  0.321  1.0
  O  O19  1  0.463  0.788  0.679  1.0
  O  O20  1  0.788  0.463  0.179  1.0
  O  O21  1  0.212  0.537  0.821  1.0
  O  O22  1  0.778  0.959  0.102  1.0
  O  O23  1  0.222  0.041  0.898  1.0
  O  O24  1  0.041  0.222  0.399  1.0
  O  O25  1  0.959  0.778  0.602  1.0
  O  O26  1  0.243  0.973  0.229  1.0
  O  O27  1  0.757  0.027  0.771  1.0
  O  O28  1  0.027  0.757  0.271  1.0
  O  O29  1  0.973  0.243  0.729  1.0
  O  O30  1  0.875  0.105  0.411  1.0
  O  O31  1  0.125  0.895  0.589  1.0
  O  O32  1  0.895  0.125  0.089  1.0
  O  O33  1  0.105  0.875  0.911  1.0
  O  O34  1  0.394  0.634  0.120  1.0
  O  O35  1  0.606  0.366  0.880  1.0
  O  O36  1  0.366  0.606  0.380  1.0
  O  O37  1  0.634  0.394  0.620  1.0
  O  O38  1  0.521  0.718  0.426  1.0
  O  O39  1  0.479  0.282  0.574  1.0
  O  O40  1  0.282  0.479  0.074  1.0
  O  O41  1  0.718  0.521  0.926  1.0
  O  O42  1  0.254  0.212  0.055  1.0
  O  O43  1  0.746  0.788  0.945  1.0
  O  O44  1  0.788  0.746  0.445  1.0
  O  O45  1  0.212  0.254  0.555  1.0
[/CIF]
.
The structure described by Dy2Cu(WO4)4 crystallizes in the monoclinic C2/c space group. Dy(1) is bonded to one O(2), one O(3), one O(4), one O(6), one O(7), and two equivalent O(8) atoms to form distorted DyO7 pentagonal bipyramids that share corners with three equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra,  an edgeedge with one W(1)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra, and  an edgeedge with one Dy(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 31-57°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), one O(4), one O(8), and two equivalent O(1) atoms to form distorted WO6 octahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent W(1)O6 octahedra, corners with three equivalent Dy(1)O7 pentagonal bipyramids,  an edgeedge with one W(2)O6 octahedra, and  an edgeedge with one Dy(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 11-52°. In the second W site, W(2) is bonded to one O(3), one O(4), one O(6), one O(7), and two equivalent O(5) atoms to form distorted WO6 octahedra that share corners with three equivalent Cu(1)O6 octahedra, corners with four equivalent Dy(1)O7 pentagonal bipyramids,  an edgeedge with one W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. Cu(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form CuO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with six equivalent W(2)O6 octahedra, and edges with two equivalent Dy(1)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 50-54°. There are eight inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal planar geometry to one Dy(1), one W(1), and one Cu(1) atom. In the second O site, O(3) is bonded in a trigonal planar geometry to one Dy(1), one W(1), and one W(2) atom. In the third O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Dy(1), one W(1), and one W(2) atom. In the fourth O site, O(5) is bonded in a trigonal planar geometry to two equivalent W(2) and one Cu(1) atom. In the fifth O site, O(6) is bonded in a distorted trigonal planar geometry to one Dy(1), one W(2), and one Cu(1) atom. In the sixth O site, O(7) is bonded in a bent 150 degrees geometry to one Dy(1) and one W(2) atom. In the seventh O site, O(8) is bonded in a trigonal non-coplanar geometry to two equivalent Dy(1) and one W(1) atom. In the eighth O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. is represented by the CIF card [CIF]
data_Dy2Cu(WO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.095
_cell_length_b   10.095
_cell_length_c   11.339
_cell_angle_alpha   70.303
_cell_angle_beta   70.303
_cell_angle_gamma   32.730
_symmetry_Int_Tables_number   1
_cell_volume   585.019
_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
  Dy  Dy0  1  0.483  0.815  0.045  1.0
  Dy  Dy1  1  0.517  0.185  0.955  1.0
  Dy  Dy2  1  0.185  0.517  0.455  1.0
  Dy  Dy3  1  0.815  0.483  0.545  1.0
  Cu  Cu4  1  0.662  0.338  0.250  1.0
  Cu  Cu5  1  0.338  0.662  0.750  1.0
  W  W6  1  0.691  0.935  0.285  1.0
  W  W7  1  0.309  0.065  0.715  1.0
  W  W8  1  0.065  0.309  0.215  1.0
  W  W9  1  0.935  0.691  0.785  1.0
  W  W10  1  0.756  0.133  0.591  1.0
  W  W11  1  0.244  0.867  0.409  1.0
  W  W12  1  0.867  0.244  0.909  1.0
  W  W13  1  0.133  0.756  0.091  1.0
  O  O14  1  0.412  0.083  0.265  1.0
  O  O15  1  0.588  0.917  0.735  1.0
  O  O16  1  0.917  0.588  0.235  1.0
  O  O17  1  0.083  0.412  0.765  1.0
  O  O18  1  0.537  0.212  0.321  1.0
  O  O19  1  0.463  0.788  0.679  1.0
  O  O20  1  0.788  0.463  0.179  1.0
  O  O21  1  0.212  0.537  0.821  1.0
  O  O22  1  0.778  0.959  0.102  1.0
  O  O23  1  0.222  0.041  0.898  1.0
  O  O24  1  0.041  0.222  0.399  1.0
  O  O25  1  0.959  0.778  0.602  1.0
  O  O26  1  0.243  0.973  0.229  1.0
  O  O27  1  0.757  0.027  0.771  1.0
  O  O28  1  0.027  0.757  0.271  1.0
  O  O29  1  0.973  0.243  0.729  1.0
  O  O30  1  0.875  0.105  0.411  1.0
  O  O31  1  0.125  0.895  0.589  1.0
  O  O32  1  0.895  0.125  0.089  1.0
  O  O33  1  0.105  0.875  0.911  1.0
  O  O34  1  0.394  0.634  0.120  1.0
  O  O35  1  0.606  0.366  0.880  1.0
  O  O36  1  0.366  0.606  0.380  1.0
  O  O37  1  0.634  0.394  0.620  1.0
  O  O38  1  0.521  0.718  0.426  1.0
  O  O39  1  0.479  0.282  0.574  1.0
  O  O40  1  0.282  0.479  0.074  1.0
  O  O41  1  0.718  0.521  0.926  1.0
  O  O42  1  0.254  0.212  0.055  1.0
  O  O43  1  0.746  0.788  0.945  1.0
  O  O44  1  0.788  0.746  0.445  1.0
  O  O45  1  0.212  0.254  0.555  1.0
[/CIF]
.