data_[Tb6Er18Te36]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [12.7672]
_cell_length_b [12.7672]
_cell_length_c [15.4209]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Tb(ErTe2)3]
_chemical_formula_sum '[Tb6 Er18 Te36]'
_cell_volume [2176.8796]
_cell_formula_units_Z [6]
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  3  0.0000  0.0000  0.0000  1.0
  Tb  Tb1  3  0.0000  0.0000  0.5000  1.0
  Er  Er2  18  0.0570  0.2748  0.7000  1.0
  Te  Te3  18  0.0157  0.2109  0.8931  1.0
  Te  Te4  18  0.0339  0.1973  0.3741  1.0
]