data_[Rb8Bi4O10F2]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [7.7128]
_cell_length_b [11.5726]
_cell_length_c [6.3061]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Rb4Bi2O5F]
_chemical_formula_sum '[Rb8 Bi4 O10 F2]'
_cell_volume [562.8693]
_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  4  0.0000  0.1857  0.1868  1.0
  Rb  Rb1  4  0.2785  0.0000  0.6618  1.0
  Bi  Bi2  4  0.5000  0.1870  0.1787  1.0
  O  O3  8  0.3087  0.2192  0.9117  1.0
  O  O4  2  0.5000  0.0000  0.2689  1.0
  F  F5  2  0.0000  0.0000  0.4353  1.0
]