data_[Tb6Pm8Tm2]
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
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [11.5337]
_cell_length_b [7.3151]
_cell_length_c [6.3111]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [Tb3Pm4Tm]
_chemical_formula_sum '[Tb6 Pm8 Tm2]'
_cell_volume [532.4645]
_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  0.2499  0.6223  0.9803  1
  Tb  Tb1  2  0.0000  0.6233  0.6480  1
  Pm  Pm2  4  0.2481  0.1279  0.9819  1
  Pm  Pm3  2  0.0000  0.1269  0.6454  1
  Pm  Pm4  2  0.0000  0.8736  0.1498  1
  Tm  Tm5  2  0.0000  0.3789  0.1475  1
]