data_[Tb6Pr6Nd16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pr  1.1300  1.8500  1.0600
  Nd  1.1400  1.8500  1.2765
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.7533]
_cell_length_b [10.9877]
_cell_length_c [15.5081]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Tb3Pr3Nd8]
_chemical_formula_sum '[Tb6 Pr6 Nd16]'
_cell_volume [980.3547]
_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  4  0.0000  0.0000  0.1837  1
  Tb  Tb1  2  0.0000  0.5000  0.5000  1
  Pr  Pr2  4  0.0000  0.1925  0.0000  1
  Pr  Pr3  2  0.0000  0.5000  0.0000  1
  Nd  Nd4  8  0.0000  0.1627  0.3960  1
  Nd  Nd5  8  0.0000  0.3420  0.2246  1
]