data_[Rb8Bi12]
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
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [7.0106]
_cell_length_b [12.9866]
_cell_length_c [9.6868]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Rb2Bi3]
_chemical_formula_sum '[Rb8 Bi12]'
_cell_volume [881.9288]
_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
[
  Rb  Rb0  8  0.0000  0.1543  0.6038  1.0
  Bi  Bi1  8  0.2500  0.0969  0.2500  1.0
  Bi  Bi2  4  0.0000  0.0000  0.0000  1.0
]