data_[Tb8Pm18Tm22]
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 [Cmmm]
_cell_length_a [16.6033]
_cell_length_b [25.2459]
_cell_length_c [3.7014]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Tb4Pm9Tm11]
_chemical_formula_sum '[Tb8 Pm18 Tm22]'
_cell_volume [1551.5098]
_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  8  0.1549  0.4001  0.5000  1
  Pm  Pm1  8  0.1040  0.2661  0.5000  1
  Pm  Pm2  8  0.1385  0.0739  0.5000  1
  Pm  Pm3  2  0.0000  0.5000  0.5000  1
  Tm  Tm4  8  0.2254  0.1803  0.0000  1
  Tm  Tm5  4  0.0000  0.1613  0.0000  1
  Tm  Tm6  4  0.0000  0.3659  0.0000  1
  Tm  Tm7  4  0.2127  0.5000  0.0000  1
  Tm  Tm8  2  0.0000  0.0000  0.0000  1
]