data_[Tb8Er4Cu4Te20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.2217]
_cell_length_b [18.7242]
_cell_length_c [12.8896]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Tb2ErCuTe5]
_chemical_formula_sum '[Tb8 Er4 Cu4 Te20]'
_cell_volume [1018.8884]
_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  0.1092  0.6844  1.0
  Tb  Tb1  4  0.0000  0.1245  0.3044  1.0
  Er  Er2  4  0.0000  0.1894  0.0093  1.0
  Cu  Cu3  4  0.0000  0.4288  0.4599  1.0
  Te  Te4  4  0.0000  0.0397  0.0672  1.0
  Te  Te5  4  0.0000  0.2862  0.6731  1.0
  Te  Te6  4  0.0000  0.3130  0.3401  1.0
  Te  Te7  4  0.0000  0.3545  0.9985  1.0
  Te  Te8  4  0.0000  0.4994  0.7871  1.0
]