data_[Tb18Pm6Pr18]
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
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [8.8070]
_cell_length_b [8.8070]
_cell_length_c [22.2680]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Tb3PmPr3]
_chemical_formula_sum '[Tb18 Pm6 Pr18]'
_cell_volume [1495.7882]
_cell_formula_units_Z [6]
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  18  0.0046  0.2325  0.0581  1
  Pr  Pr1  18  0.0473  0.4470  0.8817  1
  Pm  Pm2  6  0.0000  0.0000  0.3445  1
]