The material structure described by Y2O3 is Corundum structured and crystallizes in the trigonal R-3c space group. Y(1) is bonded to six equivalent O(1) atoms to form a mixture of distorted edge, face, and corner-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 49-65°. O(1) is bonded to four equivalent Y(1) atoms to form a mixture of distorted edge and corner-sharing OY4 trigonal pyramids. is represented by the CIF card [CIF]
data_Y2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.782
_cell_length_b   6.032
_cell_length_c   5.782
_cell_angle_alpha   118.640
_cell_angle_beta   60.000
_cell_angle_gamma   118.640
_symmetry_Int_Tables_number   1
_cell_volume   145.468
_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  0.142  0.425  0.142  1.0
  Y  Y1  1  0.358  0.075  0.358  1.0
  Y  Y2  1  0.642  0.925  0.642  1.0
  Y  Y3  1  0.858  0.575  0.858  1.0
  O  O4  1  0.250  0.750  0.543  1.0
  O  O5  1  0.043  0.250  0.750  1.0
  O  O6  1  0.457  0.250  0.043  1.0
  O  O7  1  0.543  0.750  0.957  1.0
  O  O8  1  0.957  0.750  0.250  1.0
  O  O9  1  0.750  0.250  0.457  1.0
[/CIF]
.
The material structure described by Y2O3 is Corundum structured and crystallizes in the trigonal R-3c space group. Y(1) is bonded to six equivalent O(1) atoms to form a mixture of distorted edge, face, and corner-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 49-65°. O(1) is bonded to four equivalent Y(1) atoms to form a mixture of distorted edge and corner-sharing OY4 trigonal pyramids. is represented by the CIF card [CIF]
data_Y2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.782
_cell_length_b   6.032
_cell_length_c   5.782
_cell_angle_alpha   118.640
_cell_angle_beta   60.000
_cell_angle_gamma   118.640
_symmetry_Int_Tables_number   1
_cell_volume   145.468
_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  0.142  0.425  0.142  1.0
  Y  Y1  1  0.358  0.075  0.358  1.0
  Y  Y2  1  0.642  0.925  0.642  1.0
  Y  Y3  1  0.858  0.575  0.858  1.0
  O  O4  1  0.250  0.750  0.543  1.0
  O  O5  1  0.043  0.250  0.750  1.0
  O  O6  1  0.457  0.250  0.043  1.0
  O  O7  1  0.543  0.750  0.957  1.0
  O  O8  1  0.957  0.750  0.250  1.0
  O  O9  1  0.750  0.250  0.457  1.0
[/CIF]
.