data_[Tb8Pm6Pr6]
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 [Amm2]
_cell_length_a [3.7215]
_cell_length_b [13.6520]
_cell_length_c [13.6659]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tb4(PmPr)3]
_chemical_formula_sum '[Tb8 Pm6 Pr6]'
_cell_volume [694.3093]
_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  0.1235  0.0014  1
  Tb  Tb1  2  0.0000  0.0000  0.3752  1
  Tb  Tb2  2  0.0000  0.0000  0.6237  1
  Pm  Pm3  4  0.0000  0.2489  0.2494  1
  Pr  Pr4  4  0.5000  0.1748  0.4994  1
  Pm  Pm5  2  0.5000  0.0000  0.1748  1
  Pr  Pr6  2  0.5000  0.0000  0.8258  1
]