data_[Pm8Nd4Tl2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.8764]
_cell_length_b [6.8421]
_cell_length_c [11.9307]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.1369]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Pm4Nd2Tl]
_chemical_formula_sum '[Pm8 Nd4 Tl2]'
_cell_volume [463.0524]
_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  4  0.3709  0.5081  0.7162  1
  Pm  Pm1  2  0.0349  0.2500  0.1269  1
  Pm  Pm2  2  0.1493  0.7500  0.4327  1
  Nd  Nd3  2  0.2699  0.2500  0.4294  1
  Nd  Nd4  2  0.4548  0.2500  0.9762  1
  Tl  Tl5  2  0.1120  0.7500  0.1607  1
]