data_[Tb2Dy8Y20]
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
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [I4/m]
_cell_length_a [12.1727]
_cell_length_b [12.1727]
_cell_length_c [7.6935]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [87]
_chemical_formula_structural [Tb(Dy2Y5)2]
_chemical_formula_sum '[Tb2 Dy8 Y20]'
_cell_volume [1139.9758]
_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  0.0000  0.0000  1
  Y  Y1  16  0.0997  0.7996  0.2501  1
  Dy  Dy2  8  0.1004  0.2997  0.5000  1
  Y  Y3  4  0.0000  0.5000  0.2500  1
]