data_[Tb20Sm8Dy8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Sm  1.1700  1.8500  1.2290
  Dy  1.2200  1.7500  1.1310
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [14.8875]
_cell_length_b [11.8062]
_cell_length_c [6.7370]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Tb5(SmDy)2]
_chemical_formula_sum '[Tb20 Sm8 Dy8]'
_cell_volume [1184.1249]
_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  0.0519  0.2484  0.7936  1
  Tb  Tb1  8  0.1431  0.7352  0.6089  1
  Tb  Tb2  4  0.2500  0.2451  0.5981  1
  Sm  Sm3  4  0.0000  0.0000  0.9806  1
  Sm  Sm4  4  0.2500  0.5090  0.3953  1
  Dy  Dy5  8  0.1268  0.0009  0.4425  1
]