data_[Rb8Bi8]
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 [P2_12_12_1]
_cell_length_a [7.5390]
_cell_length_b [7.6557]
_cell_length_c [13.4294]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [RbBi]
_chemical_formula_sum '[Rb8 Bi8]'
_cell_volume [775.0904]
_cell_formula_units_Z [8]
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  0.1187  0.9203  0.0498  1.0
  Rb  Rb1  4  0.1573  0.3381  0.8316  1.0
  Bi  Bi2  4  0.0883  0.4236  0.1276  1.0
  Bi  Bi3  4  0.2042  0.1650  0.2911  1.0
]