data_[Ba8Bi4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [7.8098]
_cell_length_b [6.0949]
_cell_length_c [11.8142]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Ba2BiO5]
_chemical_formula_sum '[Ba8 Bi4 O20]'
_cell_volume [562.3580]
_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
[
  Ba  Ba0  4  0.0148  0.7500  0.7808  1
  Ba  Ba1  4  0.1686  0.2500  0.5790  1
  Bi  Bi2  4  0.1802  0.2500  0.9333  1
  O  O3  8  0.1615  0.0105  0.3796  1
  O  O4  4  0.0000  0.0000  0.0000  1
  O  O5  4  0.0165  0.2500  0.7929  1
  O  O6  4  0.2165  0.7500  0.5986  1
]