data_[Rb1Na2Bi1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Bi  2.0200  1.6000  1.0350
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.0690]
_cell_length_b [8.0750]
_cell_length_c [5.2632]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.9948]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [RbNa2BiF8]
_chemical_formula_sum '[Rb1 Na2 Bi1 F8]'
_cell_volume [215.4019]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.0000  1.0
  Na  Na1  2  0.5000  0.2600  0.5000  1.0
  Bi  Bi2  1  0.0000  0.0000  0.0000  1.0
  F  F3  4  0.1504  0.1899  0.7694  1.0
  F  F4  2  0.3350  0.0000  0.2447  1.0
  F  F5  2  0.4798  0.5000  0.2646  1.0
]