data_[Tb4Nd2Er2Tl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.1783]
_cell_length_b [9.9668]
_cell_length_c [6.8881]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Tb2NdErTl2]
_chemical_formula_sum '[Tb4 Nd2 Er2 Tl4]'
_cell_volume [355.5023]
_cell_formula_units_Z [2]
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  2  0.0000  0.1823  0.3368  1.0
  Tb  Tb1  2  0.5000  0.0456  0.0513  1.0
  Nd  Nd2  2  0.0000  0.4573  0.9584  1.0
  Er  Er3  2  0.5000  0.3081  0.6782  1.0
  Tl  Tl4  2  0.0000  0.1349  0.7974  1.0
  Tl  Tl5  2  0.5000  0.3652  0.2235  1.0
]