data_[Tb6Pm2Y4]
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
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [7.2096]
_cell_length_b [7.2173]
_cell_length_c [8.8920]
_cell_angle_alpha [78.2310]
_cell_angle_beta [78.3009]
_cell_angle_gamma [60.0520]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Tb3PmY2]
_chemical_formula_sum '[Tb6 Pm2 Y4]'
_cell_volume [389.6870]
_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  2  0.1397  0.1382  0.6654  1
  Tb  Tb1  2  0.2505  0.2493  0.9994  1
  Tb  Tb2  2  0.3605  0.8619  0.3339  1
  Pm  Pm3  2  0.2494  0.7505  0.0008  1
  Y  Y4  2  0.1390  0.6390  0.6656  1
  Y  Y5  2  0.3607  0.3605  0.3352  1
]