The structure described by Dy2Zr2O7 crystallizes in the cubic Fd-3m space group. Dy(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. Zr(1) is bonded to six equivalent O(2) atoms to form corner-sharing ZrO6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Dy(1) atoms to form ODy4 tetrahedra that share corners with four equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Zr2 tetrahedra, and edges with six equivalent O(2)Dy2Zr2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Dy(1) and two equivalent Zr(1) atoms to form distorted ODy2Zr2 tetrahedra that share corners with two equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Zr2 tetrahedra,  an edgeedge with one O(1)Dy4 tetrahedra, and edges with four equivalent O(2)Dy2Zr2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy2Zr2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.486
_cell_length_c   7.486
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   296.645
_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  0.625  0.625  0.625  1.0
  Dy  Dy1  1  0.125  0.625  0.625  1.0
  Dy  Dy2  1  0.625  0.125  0.625  1.0
  Dy  Dy3  1  0.625  0.625  0.125  1.0
  Zr  Zr4  1  0.125  0.125  0.625  1.0
  Zr  Zr5  1  0.125  0.625  0.125  1.0
  Zr  Zr6  1  0.625  0.125  0.125  1.0
  Zr  Zr7  1  0.125  0.125  0.125  1.0
  O  O8  1  0.500  0.500  0.500  1.0
  O  O9  1  0.750  0.750  0.750  1.0
  O  O10  1  0.216  0.784  0.784  1.0
  O  O11  1  0.216  0.216  0.784  1.0
  O  O12  1  0.784  0.216  0.784  1.0
  O  O13  1  0.784  0.784  0.216  1.0
  O  O14  1  0.216  0.784  0.216  1.0
  O  O15  1  0.466  0.034  0.034  1.0
  O  O16  1  0.784  0.216  0.216  1.0
  O  O17  1  0.034  0.466  0.034  1.0
  O  O18  1  0.466  0.034  0.466  1.0
  O  O19  1  0.466  0.466  0.034  1.0
  O  O20  1  0.034  0.034  0.466  1.0
  O  O21  1  0.034  0.466  0.466  1.0
[/CIF]
.
The structure described by Dy2Zr2O7 crystallizes in the cubic Fd-3m space group. Dy(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. Zr(1) is bonded to six equivalent O(2) atoms to form corner-sharing ZrO6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Dy(1) atoms to form ODy4 tetrahedra that share corners with four equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Zr2 tetrahedra, and edges with six equivalent O(2)Dy2Zr2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Dy(1) and two equivalent Zr(1) atoms to form distorted ODy2Zr2 tetrahedra that share corners with two equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Zr2 tetrahedra,  an edgeedge with one O(1)Dy4 tetrahedra, and edges with four equivalent O(2)Dy2Zr2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy2Zr2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.486
_cell_length_c   7.486
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   296.645
_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  0.625  0.625  0.625  1.0
  Dy  Dy1  1  0.125  0.625  0.625  1.0
  Dy  Dy2  1  0.625  0.125  0.625  1.0
  Dy  Dy3  1  0.625  0.625  0.125  1.0
  Zr  Zr4  1  0.125  0.125  0.625  1.0
  Zr  Zr5  1  0.125  0.625  0.125  1.0
  Zr  Zr6  1  0.625  0.125  0.125  1.0
  Zr  Zr7  1  0.125  0.125  0.125  1.0
  O  O8  1  0.500  0.500  0.500  1.0
  O  O9  1  0.750  0.750  0.750  1.0
  O  O10  1  0.216  0.784  0.784  1.0
  O  O11  1  0.216  0.216  0.784  1.0
  O  O12  1  0.784  0.216  0.784  1.0
  O  O13  1  0.784  0.784  0.216  1.0
  O  O14  1  0.216  0.784  0.216  1.0
  O  O15  1  0.466  0.034  0.034  1.0
  O  O16  1  0.784  0.216  0.216  1.0
  O  O17  1  0.034  0.466  0.034  1.0
  O  O18  1  0.466  0.034  0.466  1.0
  O  O19  1  0.466  0.466  0.034  1.0
  O  O20  1  0.034  0.034  0.466  1.0
  O  O21  1  0.034  0.466  0.466  1.0
[/CIF]
.