data_[La18Pm24Tl3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [9.2397]
_cell_length_b [9.2397]
_cell_length_c [21.1726]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [La6Pm8Tl]
_chemical_formula_sum '[La18 Pm24 Tl3]'
_cell_volume [1565.3708]
_cell_formula_units_Z [3]
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
[
  La  La0  18  0.0522  0.2549  0.7077  1
  Pm  Pm1  18  0.0834  0.5736  0.8061  1
  Pm  Pm2  6  0.0000  0.0000  0.4225  1
  Tl  Tl3  3  0.0000  0.0000  0.0000  1
]