data_[Tb20Pm4Pr4Y8]
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
  Pr  1.1300  1.8500  1.0600
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.6661]
_cell_length_b [19.9591]
_cell_length_c [10.6660]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Tb5PmPrY2]
_chemical_formula_sum '[Tb20 Pm4 Pr4 Y8]'
_cell_volume [1206.2329]
_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  4  0.0000  0.0183  0.0269  1
  Tb  Tb1  4  0.0000  0.2823  0.3097  1
  Tb  Tb2  4  0.0000  0.2979  0.7075  1
  Tb  Tb3  4  0.0000  0.3918  0.0241  1
  Tb  Tb4  4  0.0000  0.4781  0.7370  1
  Pm  Pm5  4  0.0000  0.2029  0.0112  1
  Pr  Pr6  4  0.0000  0.4170  0.4516  1
  Y  Y7  4  0.0000  0.1106  0.7336  1
  Y  Y8  4  0.0000  0.1145  0.3225  1
]