The compound described by Bi2O3 crystallizes in the monoclinic Cm space group. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 5-coordinate geometry to two equivalent O(1) and three equivalent O(3) atoms. In the second Bi site, Bi(2) is bonded to one O(1), one O(3), and three equivalent O(2) atoms to form corner-sharing BiO5 trigonal bipyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Bi(2) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to three equivalent Bi(2) atoms. In the third O site, O(3) is bonded to one Bi(2) and three equivalent Bi(1) atoms to form distorted corner-sharing OBi4 tetrahedra. is represented by the CIF card [CIF]
data_Bi2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.983
_cell_length_b   3.983
_cell_length_c   7.346
_cell_angle_alpha   72.533
_cell_angle_beta   72.533
_cell_angle_gamma   56.926
_symmetry_Int_Tables_number   1
_cell_volume   91.802
_cell_formula_units_Z   1
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
  Bi  Bi0  1  0.014  0.014  0.015  1.0
  Bi  Bi1  1  0.472  0.472  0.512  1.0
  O  O2  1  0.569  0.569  0.168  1.0
  O  O3  1  0.806  0.806  0.501  1.0
  O  O4  1  0.343  0.343  0.849  1.0
[/CIF]
.
The compound described by Bi2O3 crystallizes in the monoclinic Cm space group. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 5-coordinate geometry to two equivalent O(1) and three equivalent O(3) atoms. In the second Bi site, Bi(2) is bonded to one O(1), one O(3), and three equivalent O(2) atoms to form corner-sharing BiO5 trigonal bipyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Bi(2) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to three equivalent Bi(2) atoms. In the third O site, O(3) is bonded to one Bi(2) and three equivalent Bi(1) atoms to form distorted corner-sharing OBi4 tetrahedra. is represented by the CIF card [CIF]
data_Bi2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.983
_cell_length_b   3.983
_cell_length_c   7.346
_cell_angle_alpha   72.533
_cell_angle_beta   72.533
_cell_angle_gamma   56.926
_symmetry_Int_Tables_number   1
_cell_volume   91.802
_cell_formula_units_Z   1
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
  Bi  Bi0  1  0.014  0.014  0.015  1.0
  Bi  Bi1  1  0.472  0.472  0.512  1.0
  O  O2  1  0.569  0.569  0.168  1.0
  O  O3  1  0.806  0.806  0.501  1.0
  O  O4  1  0.343  0.343  0.849  1.0
[/CIF]
.