The material structure described by B2O3 crystallizes in the orthorhombic Cmc2_1 space group. B(1) is bonded to one O(1) and three equivalent O(2) atoms to form corner-sharing BO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent B(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to three equivalent B(1) atoms. is represented by the CIF file [CIF]
data_B2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.133
_cell_length_b   4.540
_cell_length_c   4.540
_cell_angle_alpha   118.851
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   74.616
_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
  B  B0  1  0.568  0.324  0.994  1.0
  B  B1  1  0.068  0.676  0.006  1.0
  B  B2  1  0.068  0.006  0.676  1.0
  B  B3  1  0.568  0.994  0.324  1.0
  O  O4  1  0.500  0.245  0.245  1.0
  O  O5  1  0.000  0.755  0.755  1.0
  O  O6  1  0.418  0.661  0.079  1.0
  O  O7  1  0.918  0.339  0.921  1.0
  O  O8  1  0.918  0.921  0.339  1.0
  O  O9  1  0.418  0.079  0.661  1.0
[/CIF]
.
The material structure described by B2O3 crystallizes in the orthorhombic Cmc2_1 space group. B(1) is bonded to one O(1) and three equivalent O(2) atoms to form corner-sharing BO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent B(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to three equivalent B(1) atoms. is represented by the CIF file [CIF]
data_B2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.133
_cell_length_b   4.540
_cell_length_c   4.540
_cell_angle_alpha   118.851
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   74.616
_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
  B  B0  1  0.568  0.324  0.994  1.0
  B  B1  1  0.068  0.676  0.006  1.0
  B  B2  1  0.068  0.006  0.676  1.0
  B  B3  1  0.568  0.994  0.324  1.0
  O  O4  1  0.500  0.245  0.245  1.0
  O  O5  1  0.000  0.755  0.755  1.0
  O  O6  1  0.418  0.661  0.079  1.0
  O  O7  1  0.918  0.339  0.921  1.0
  O  O8  1  0.918  0.921  0.339  1.0
  O  O9  1  0.418  0.079  0.661  1.0
[/CIF]
.