data_[Pm6Sm12Tl2]
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 [P2_1/m]
_cell_length_a [12.4015]
_cell_length_b [3.6330]
_cell_length_c [14.9391]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.9448]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Pm3Sm6Tl]
_chemical_formula_sum '[Pm6 Sm12 Tl2]'
_cell_volume [671.4907]
_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  2  0.0537  0.7500  0.8045  1
  Pm  Pm1  2  0.1016  0.7500  0.5843  1
  Pm  Pm2  2  0.4262  0.7500  0.3188  1
  Sm  Sm3  2  0.1142  0.2500  0.0041  1
  Sm  Sm4  2  0.1900  0.2500  0.3916  1
  Sm  Sm5  2  0.2055  0.7500  0.1872  1
  Sm  Sm6  2  0.3066  0.2500  0.7528  1
  Sm  Sm7  2  0.3795  0.7500  0.5449  1
  Sm  Sm8  2  0.4364  0.2500  0.1079  1
  Tl  Tl9  2  0.3126  0.7500  0.9418  1
]