data_[Na4Tb20Se32]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tb  1.1000  1.7500  0.9815
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [F-43m]
_cell_length_a [12.0128]
_cell_length_b [12.0128]
_cell_length_c [12.0128]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [216]
_chemical_formula_structural [NaTb5Se8]
_chemical_formula_sum '[Na4 Tb20 Se32]'
_cell_volume [1733.5202]
_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
[
  Na  Na0  4  0.2500  0.2500  0.2500  1.0
  Tb  Tb1  16  0.1201  0.1201  0.6201  1.0
  Tb  Tb2  4  0.0000  0.0000  0.0000  1.0
  Se  Se3  16  0.1151  0.1151  0.3849  1.0
  Se  Se4  16  0.1331  0.1331  0.8669  1.0
]