data_[Rb16Bi2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.8596]
_cell_length_b [12.4629]
_cell_length_c [14.1847]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Rb8BiO2]
_chemical_formula_sum '[Rb16 Bi2 O4]'
_cell_volume [1035.8803]
_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
[
  Rb  Rb0  8  0.0000  0.1636  0.1257  1.0
  Rb  Rb1  4  0.0000  0.1917  0.5000  1.0
  Rb  Rb2  4  0.0000  0.5000  0.1273  1.0
  Bi  Bi3  2  0.0000  0.5000  0.5000  1.0
  O  O4  4  0.0000  0.3304  0.0000  1.0
]