The material described by LaO2 is Baddeleyite-like structured and crystallizes in the monoclinic P2_1/m space group. La(1) is bonded to three equivalent O(1) and four equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing LaO7 hexagonal pyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to three equivalent La(1) atoms. In the second O site, O(2) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra. is represented by the CIF file [CIF]
data_LaO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.934
_cell_length_b   4.307
_cell_length_c   6.364
_cell_angle_alpha   80.057
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   106.213
_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
  La  La0  1  0.250  0.195  0.199  1.0
  La  La1  1  0.750  0.805  0.801  1.0
  O  O2  1  0.250  0.827  0.546  1.0
  O  O3  1  0.750  0.173  0.454  1.0
  O  O4  1  0.250  0.745  0.031  1.0
  O  O5  1  0.750  0.255  0.969  1.0
[/CIF]
.
The material described by LaO2 is Baddeleyite-like structured and crystallizes in the monoclinic P2_1/m space group. La(1) is bonded to three equivalent O(1) and four equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing LaO7 hexagonal pyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to three equivalent La(1) atoms. In the second O site, O(2) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra. is represented by the CIF file [CIF]
data_LaO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.934
_cell_length_b   4.307
_cell_length_c   6.364
_cell_angle_alpha   80.057
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   106.213
_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
  La  La0  1  0.250  0.195  0.199  1.0
  La  La1  1  0.750  0.805  0.801  1.0
  O  O2  1  0.250  0.827  0.546  1.0
  O  O3  1  0.750  0.173  0.454  1.0
  O  O4  1  0.250  0.745  0.031  1.0
  O  O5  1  0.750  0.255  0.969  1.0
[/CIF]
.