data_[Tb4Pm8Bi16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.5301]
_cell_length_b [11.3695]
_cell_length_c [17.5300]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Tb(PmBi2)2]
_chemical_formula_sum '[Tb4 Pm8 Bi16]'
_cell_volume [902.8711]
_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
[
  Tb  Tb0  4  0.0000  0.4540  0.2500  1
  Pm  Pm1  8  0.0000  0.1650  0.0754  1
  Bi  Bi2  8  0.0000  0.1375  0.6234  1
  Bi  Bi3  4  0.0000  0.1636  0.2500  1
  Bi  Bi4  4  0.0000  0.5000  0.0000  1
]