data_[Tb16Dy4Tl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [6.9170]
_cell_length_b [12.0160]
_cell_length_c [10.6273]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Tb4DyTl2]
_chemical_formula_sum '[Tb16 Dy4 Tl8]'
_cell_volume [883.2786]
_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  8  0.0000  0.0493  0.3310  1
  Tb  Tb1  8  0.2500  0.1901  0.7500  1
  Dy  Dy2  4  0.0000  0.0000  0.0000  1
  Tl  Tl3  8  0.0000  0.2432  0.5177  1
]