The material structure described by YbO2 is Baddeleyite-like structured and crystallizes in the tetragonal P-42_1m space group. Yb(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(2), and three equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(3) is bonded in a distorted trigonal planar geometry to three equivalent Yb(1) atoms. In the second O site, O(1) is bonded to four equivalent Yb(1) atoms to form a mixture of corner and edge-sharing OYb4 tetrahedra. In the third O site, O(2) is bonded to four equivalent Yb(1) atoms to form a mixture of corner and edge-sharing OYb4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.096
_cell_length_b   5.096
_cell_length_c   6.124
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   159.047
_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
  Yb  Yb0  1  0.264  0.764  0.736  1.0
  Yb  Yb1  1  0.236  0.264  0.264  1.0
  Yb  Yb2  1  0.736  0.236  0.736  1.0
  Yb  Yb3  1  0.764  0.736  0.264  1.0
  O  O4  1  0.000  0.500  0.524  1.0
  O  O5  1  0.500  0.000  0.476  1.0
  O  O6  1  0.000  0.000  0.500  1.0
  O  O7  1  0.500  0.500  0.500  1.0
  O  O8  1  0.177  0.677  0.098  1.0
  O  O9  1  0.323  0.177  0.902  1.0
  O  O10  1  0.823  0.323  0.098  1.0
  O  O11  1  0.677  0.823  0.902  1.0
[/CIF]
.
The material structure described by YbO2 is Baddeleyite-like structured and crystallizes in the tetragonal P-42_1m space group. Yb(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(2), and three equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(3) is bonded in a distorted trigonal planar geometry to three equivalent Yb(1) atoms. In the second O site, O(1) is bonded to four equivalent Yb(1) atoms to form a mixture of corner and edge-sharing OYb4 tetrahedra. In the third O site, O(2) is bonded to four equivalent Yb(1) atoms to form a mixture of corner and edge-sharing OYb4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.096
_cell_length_b   5.096
_cell_length_c   6.124
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   159.047
_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
  Yb  Yb0  1  0.264  0.764  0.736  1.0
  Yb  Yb1  1  0.236  0.264  0.264  1.0
  Yb  Yb2  1  0.736  0.236  0.736  1.0
  Yb  Yb3  1  0.764  0.736  0.264  1.0
  O  O4  1  0.000  0.500  0.524  1.0
  O  O5  1  0.500  0.000  0.476  1.0
  O  O6  1  0.000  0.000  0.500  1.0
  O  O7  1  0.500  0.500  0.500  1.0
  O  O8  1  0.177  0.677  0.098  1.0
  O  O9  1  0.323  0.177  0.902  1.0
  O  O10  1  0.823  0.323  0.098  1.0
  O  O11  1  0.677  0.823  0.902  1.0
[/CIF]
.