data_[Tb20Cu4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.9428]
_cell_length_b [12.5780]
_cell_length_c [12.9467]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Tb5CuTe2]
_chemical_formula_sum '[Tb20 Cu4 Te8]'
_cell_volume [967.7447]
_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  8  0.0000  0.0563  0.1142  1
  Tb  Tb1  8  0.0000  0.3861  0.0833  1
  Tb  Tb2  4  0.0000  0.3640  0.7500  1
  Cu  Cu3  4  0.0000  0.2291  0.2500  1
  Te  Te4  8  0.0000  0.1920  0.5834  1
]