# generated using pymatgen
data_Bi4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.44636400
_cell_length_b   10.44636400
_cell_length_c   4.13755900
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Bi4O9
_chemical_formula_sum   'Bi8 O18'
_cell_volume   451.51741836
_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
  Bi  Bi0  1  0.08810000  0.78303400  0.54714800  1.0
  Bi  Bi1  1  0.21696600  0.08810000  0.45285200  1.0
  Bi  Bi2  1  0.71696600  0.58810000  0.54714800  1.0
  Bi  Bi3  1  0.58810000  0.28303400  0.45285200  1.0
  Bi  Bi4  1  0.91190000  0.21696600  0.54714800  1.0
  Bi  Bi5  1  0.28303400  0.41190000  0.54714800  1.0
  Bi  Bi6  1  0.41190000  0.71696600  0.45285200  1.0
  Bi  Bi7  1  0.78303400  0.91190000  0.45285200  1.0
  O  O8  1  0.00000000  0.00000000  0.50000000  1.0
  O  O9  1  0.50000000  0.50000000  0.50000000  1.0
  O  O10  1  0.76550700  0.94679600  0.95638900  1.0
  O  O11  1  0.44679600  0.73449300  0.95638900  1.0
  O  O12  1  0.55320400  0.26550700  0.95638900  1.0
  O  O13  1  0.23449300  0.05320400  0.95638900  1.0
  O  O14  1  0.73449300  0.55320400  0.04361100  1.0
  O  O15  1  0.05320400  0.76550700  0.04361100  1.0
  O  O16  1  0.94679600  0.23449300  0.04361100  1.0
  O  O17  1  0.26550700  0.44679600  0.04361100  1.0
  O  O18  1  0.11970800  0.27479800  0.52483700  1.0
  O  O19  1  0.77479800  0.38029200  0.52483700  1.0
  O  O20  1  0.22520200  0.61970800  0.52483700  1.0
  O  O21  1  0.88029200  0.72520200  0.52483700  1.0
  O  O22  1  0.61970800  0.77479800  0.47516300  1.0
  O  O23  1  0.72520200  0.11970800  0.47516300  1.0
  O  O24  1  0.27479800  0.88029200  0.47516300  1.0
  O  O25  1  0.38029200  0.22520200  0.47516300  1.0