The crystal structure described by ZrO2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Zr(1) is bonded in a 9-coordinate geometry to four equivalent O(2) and five equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded to four equivalent Zr(1) atoms to form a mixture of corner and edge-sharing OZr4 tetrahedra. In the second O site, O(1) is bonded in a 5-coordinate geometry to five equivalent Zr(1) atoms. is represented by the CIF card [CIF]
data_ZrO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.388
_cell_length_b   5.633
_cell_length_c   6.589
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   125.745
_cell_formula_units_Z   4
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
  Zr  Zr0  1  0.250  0.252  0.608  1.0
  Zr  Zr1  1  0.750  0.748  0.392  1.0
  Zr  Zr2  1  0.250  0.752  0.892  1.0
  Zr  Zr3  1  0.750  0.248  0.108  1.0
  O  O4  1  0.750  0.478  0.841  1.0
  O  O5  1  0.250  0.522  0.159  1.0
  O  O6  1  0.750  0.978  0.659  1.0
  O  O7  1  0.250  0.022  0.341  1.0
  O  O8  1  0.750  0.361  0.423  1.0
  O  O9  1  0.250  0.639  0.577  1.0
  O  O10  1  0.750  0.861  0.077  1.0
  O  O11  1  0.250  0.139  0.923  1.0
[/CIF]
.
The crystal structure described by ZrO2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Zr(1) is bonded in a 9-coordinate geometry to four equivalent O(2) and five equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded to four equivalent Zr(1) atoms to form a mixture of corner and edge-sharing OZr4 tetrahedra. In the second O site, O(1) is bonded in a 5-coordinate geometry to five equivalent Zr(1) atoms. is represented by the CIF card [CIF]
data_ZrO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.388
_cell_length_b   5.633
_cell_length_c   6.589
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   125.745
_cell_formula_units_Z   4
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
  Zr  Zr0  1  0.250  0.252  0.608  1.0
  Zr  Zr1  1  0.750  0.748  0.392  1.0
  Zr  Zr2  1  0.250  0.752  0.892  1.0
  Zr  Zr3  1  0.750  0.248  0.108  1.0
  O  O4  1  0.750  0.478  0.841  1.0
  O  O5  1  0.250  0.522  0.159  1.0
  O  O6  1  0.750  0.978  0.659  1.0
  O  O7  1  0.250  0.022  0.341  1.0
  O  O8  1  0.750  0.361  0.423  1.0
  O  O9  1  0.250  0.639  0.577  1.0
  O  O10  1  0.750  0.861  0.077  1.0
  O  O11  1  0.250  0.139  0.923  1.0
[/CIF]
.