data_[Er20Tm12Tl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [11.7060]
_cell_length_b [15.4714]
_cell_length_c [6.4892]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.3455]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Er5Tm3Tl2]
_chemical_formula_sum '[Er20 Tm12 Tl8]'
_cell_volume [1171.8742]
_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
[
  Er  Er0  8  0.1302  0.3424  0.6153  1.0
  Er  Er1  8  0.2445  0.4526  0.0222  1.0
  Er  Er2  4  0.0000  0.4678  0.2500  1.0
  Tm  Tm3  8  0.1186  0.2419  0.0962  1.0
  Tm  Tm4  4  0.0000  0.0364  0.2500  1.0
  Tl  Tl5  8  0.1223  0.1436  0.6028  1.0
]