The structure described by BiO2 is Hydrophilite-like structured and crystallizes in the orthorhombic Pmc2_1 space group. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(5), one O(8), two equivalent O(4), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the second Bi site, Bi(2) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(5) atoms to form a mixture of corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-57°. In the third Bi site, Bi(3) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(8) atoms to form a mixture of distorted corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the fourth Bi site, Bi(4) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-57°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Bi(4) and two equivalent Bi(3) atoms. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Bi(3) and two equivalent Bi(4) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Bi(4) and two equivalent Bi(2) atoms. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Bi(3) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Bi(1) and two equivalent Bi(2) atoms. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Bi(2) and two equivalent Bi(1) atoms. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Bi(2) and two equivalent Bi(4) atoms. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Bi(1) and two equivalent Bi(3) atoms. is represented by the CIF file [CIF]
data_BiO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.447
_cell_length_b   10.595
_cell_length_c   12.036
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   439.600
_cell_formula_units_Z   8
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  0.000  0.399  0.656  1.0
  Bi  Bi1  1  0.500  0.101  0.160  1.0
  Bi  Bi2  1  0.000  0.899  0.344  1.0
  Bi  Bi3  1  0.500  0.601  0.840  1.0
  Bi  Bi4  1  0.500  0.551  0.363  1.0
  Bi  Bi5  1  0.000  0.459  0.120  1.0
  Bi  Bi6  1  0.500  0.051  0.637  1.0
  Bi  Bi7  1  0.000  0.959  0.880  1.0
  O  O8  1  0.000  0.926  0.703  1.0
  O  O9  1  0.500  0.078  0.827  1.0
  O  O10  1  0.000  0.426  0.297  1.0
  O  O11  1  0.500  0.578  0.173  1.0
  O  O12  1  0.000  0.036  0.041  1.0
  O  O13  1  0.500  0.926  0.456  1.0
  O  O14  1  0.000  0.536  0.959  1.0
  O  O15  1  0.500  0.426  0.544  1.0
  O  O16  1  0.000  0.593  0.711  1.0
  O  O17  1  0.500  0.398  0.775  1.0
  O  O18  1  0.000  0.093  0.289  1.0
  O  O19  1  0.500  0.898  0.225  1.0
  O  O20  1  0.500  0.832  0.905  1.0
  O  O21  1  0.000  0.202  0.639  1.0
  O  O22  1  0.000  0.702  0.361  1.0
  O  O23  1  0.500  0.332  0.095  1.0
[/CIF]
.
The structure described by BiO2 is Hydrophilite-like structured and crystallizes in the orthorhombic Pmc2_1 space group. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(5), one O(8), two equivalent O(4), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the second Bi site, Bi(2) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(5) atoms to form a mixture of corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-57°. In the third Bi site, Bi(3) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(8) atoms to form a mixture of distorted corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the fourth Bi site, Bi(4) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 47-57°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Bi(4) and two equivalent Bi(3) atoms. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Bi(3) and two equivalent Bi(4) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Bi(4) and two equivalent Bi(2) atoms. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Bi(3) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Bi(1) and two equivalent Bi(2) atoms. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Bi(2) and two equivalent Bi(1) atoms. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Bi(2) and two equivalent Bi(4) atoms. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Bi(1) and two equivalent Bi(3) atoms. is represented by the CIF file [CIF]
data_BiO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.447
_cell_length_b   10.595
_cell_length_c   12.036
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   439.600
_cell_formula_units_Z   8
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  0.000  0.399  0.656  1.0
  Bi  Bi1  1  0.500  0.101  0.160  1.0
  Bi  Bi2  1  0.000  0.899  0.344  1.0
  Bi  Bi3  1  0.500  0.601  0.840  1.0
  Bi  Bi4  1  0.500  0.551  0.363  1.0
  Bi  Bi5  1  0.000  0.459  0.120  1.0
  Bi  Bi6  1  0.500  0.051  0.637  1.0
  Bi  Bi7  1  0.000  0.959  0.880  1.0
  O  O8  1  0.000  0.926  0.703  1.0
  O  O9  1  0.500  0.078  0.827  1.0
  O  O10  1  0.000  0.426  0.297  1.0
  O  O11  1  0.500  0.578  0.173  1.0
  O  O12  1  0.000  0.036  0.041  1.0
  O  O13  1  0.500  0.926  0.456  1.0
  O  O14  1  0.000  0.536  0.959  1.0
  O  O15  1  0.500  0.426  0.544  1.0
  O  O16  1  0.000  0.593  0.711  1.0
  O  O17  1  0.500  0.398  0.775  1.0
  O  O18  1  0.000  0.093  0.289  1.0
  O  O19  1  0.500  0.898  0.225  1.0
  O  O20  1  0.500  0.832  0.905  1.0
  O  O21  1  0.000  0.202  0.639  1.0
  O  O22  1  0.000  0.702  0.361  1.0
  O  O23  1  0.500  0.332  0.095  1.0
[/CIF]
.