The structure described by YO2 is Baddeleyite-like structured and crystallizes in the monoclinic P2_1/m space group. Y(1) is bonded in a 7-coordinate geometry to three equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to three equivalent Y(1) atoms. In the second O site, O(2) is bonded to four equivalent Y(1) atoms to form a mixture of edge and corner-sharing OY4 tetrahedra. is represented by the CIF card [CIF]
data_YO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.611
_cell_length_b   4.188
_cell_length_c   6.182
_cell_angle_alpha   72.580
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   89.182
_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
  Y  Y0  1  0.250  0.170  0.184  1.0
  Y  Y1  1  0.750  0.830  0.816  1.0
  O  O2  1  0.250  0.819  0.553  1.0
  O  O3  1  0.750  0.181  0.447  1.0
  O  O4  1  0.250  0.732  0.047  1.0
  O  O5  1  0.750  0.268  0.953  1.0
[/CIF]
.
The structure described by YO2 is Baddeleyite-like structured and crystallizes in the monoclinic P2_1/m space group. Y(1) is bonded in a 7-coordinate geometry to three equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to three equivalent Y(1) atoms. In the second O site, O(2) is bonded to four equivalent Y(1) atoms to form a mixture of edge and corner-sharing OY4 tetrahedra. is represented by the CIF card [CIF]
data_YO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.611
_cell_length_b   4.188
_cell_length_c   6.182
_cell_angle_alpha   72.580
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   89.182
_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
  Y  Y0  1  0.250  0.170  0.184  1.0
  Y  Y1  1  0.750  0.830  0.816  1.0
  O  O2  1  0.250  0.819  0.553  1.0
  O  O3  1  0.750  0.181  0.447  1.0
  O  O4  1  0.250  0.732  0.047  1.0
  O  O5  1  0.750  0.268  0.953  1.0
[/CIF]
.