data_[Bi12W4O28]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Bi  2.0200  1.6000  1.0350
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C222_1]
_cell_length_a [7.9313]
_cell_length_b [10.9561]
_cell_length_c [7.6744]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [20]
_chemical_formula_structural [Bi3WO7]
_chemical_formula_sum '[Bi12 W4 O28]'
_cell_volume [666.8696]
_cell_formula_units_Z [4]
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  8  0.2363  0.2405  0.2448  1
  Bi  Bi1  4  0.0422  0.5000  0.0000  1
  W  W2  4  0.0026  0.0000  0.0000  1
  O  O3  8  0.1714  0.1283  0.9621  1
  O  O4  8  0.2002  0.1147  0.5384  1
  O  O5  4  0.0000  0.0618  0.2500  1
  O  O6  4  0.0000  0.3623  0.2500  1
  O  O7  4  0.0000  0.3670  0.7500  1
]