data_[Tb2Ho2Er4Tl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ho  1.2300  1.7500  1.0410
  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 [5.1228]
_cell_length_b [9.8217]
_cell_length_c [6.8194]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [TbHo(ErTl)2]
_chemical_formula_sum '[Tb2 Ho2 Er4 Tl4]'
_cell_volume [343.1164]
_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  0.4578  0.9615  1.0
  Ho  Ho1  2  0.5000  0.3107  0.6796  1.0
  Er  Er2  2  0.0000  0.1860  0.3366  1.0
  Er  Er3  2  0.5000  0.0427  0.0527  1.0
  Tl  Tl4  2  0.0000  0.1328  0.7986  1.0
  Tl  Tl5  2  0.5000  0.3648  0.2166  1.0
]