data_[Pm2Tm12Tl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tm  1.2500  1.7500  1.0950
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.6168]
_cell_length_b [3.7084]
_cell_length_c [11.9293]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.8587]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm(Tm3Tl)2]
_chemical_formula_sum '[Pm2 Tm12 Tl4]'
_cell_volume [531.2587]
_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  0.0000  0.0000  0.0000  1
  Tm  Tm1  4  0.0113  0.0000  0.3489  1
  Tm  Tm2  4  0.1867  0.5000  0.8740  1
  Tm  Tm3  4  0.1895  0.5000  0.5812  1
  Tl  Tl4  4  0.1428  0.5000  0.2171  1
]