The structure described by GdO2 crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 9-coordinate geometry to four equivalent O(1) and five equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to four equivalent Gd(1) atoms. In the second O site, O(2) is bonded to five equivalent Gd(1) atoms to form a mixture of distorted corner and edge-sharing OGd5 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.373
_cell_length_b   3.373
_cell_length_c   6.465
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   73.575
_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
  Gd  Gd0  1  0.750  0.750  0.732  1.0
  Gd  Gd1  1  0.250  0.250  0.268  1.0
  O  O2  1  0.750  0.250  0.000  1.0
  O  O3  1  0.250  0.750  0.000  1.0
  O  O4  1  0.250  0.250  0.635  1.0
  O  O5  1  0.750  0.750  0.365  1.0
[/CIF]
.
The structure described by GdO2 crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 9-coordinate geometry to four equivalent O(1) and five equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to four equivalent Gd(1) atoms. In the second O site, O(2) is bonded to five equivalent Gd(1) atoms to form a mixture of distorted corner and edge-sharing OGd5 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.373
_cell_length_b   3.373
_cell_length_c   6.465
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   73.575
_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
  Gd  Gd0  1  0.750  0.750  0.732  1.0
  Gd  Gd1  1  0.250  0.250  0.268  1.0
  O  O2  1  0.750  0.250  0.000  1.0
  O  O3  1  0.250  0.750  0.000  1.0
  O  O4  1  0.250  0.250  0.635  1.0
  O  O5  1  0.750  0.750  0.365  1.0
[/CIF]
.