data_[Pm2Sm4Tl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Pm]
_cell_length_a [7.5661]
_cell_length_b [7.5574]
_cell_length_c [8.5987]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.9360]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [6]
_chemical_formula_structural [Pm(SmTl2)2]
_chemical_formula_sum '[Pm2 Sm4 Tl8]'
_cell_volume [442.1576]
_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
[
  Pm  Pm0  1  0.0094  0.5000  0.1262  1
  Pm  Pm1  1  0.5106  0.5000  0.1276  1
  Sm  Sm2  1  0.2585  0.0000  0.6231  1
  Sm  Sm3  1  0.2959  0.5000  0.6199  1
  Sm  Sm4  1  0.5537  0.0000  0.1300  1
  Sm  Sm5  1  0.7588  0.0000  0.6230  1
  Tl  Tl6  2  0.1266  0.2484  0.8750  1
  Tl  Tl7  2  0.3730  0.2274  0.3534  1
  Tl  Tl8  2  0.6625  0.2497  0.8734  1
  Tl  Tl9  2  0.8954  0.2710  0.3988  1
]