data_[Tb8Pm20Dy8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Dy  1.2200  1.7500  1.1310
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [14.9219]
_cell_length_b [11.8531]
_cell_length_c [6.8181]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Tb2Pm5Dy2]
_chemical_formula_sum '[Tb8 Pm20 Dy8]'
_cell_volume [1205.9216]
_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  0.1273  0.0046  0.5528  1
  Pm  Pm1  8  0.0510  0.7415  0.2109  1
  Pm  Pm2  8  0.1437  0.2330  0.8810  1
  Pm  Pm3  4  0.2500  0.7432  0.9034  1
  Dy  Dy4  4  0.0000  0.0000  0.0426  1
  Dy  Dy5  4  0.2500  0.0073  0.1006  1
]