data_[Pm20Tl8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tl  1.6200  1.9000  1.3325
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [8.8973]
_cell_length_b [6.8566]
_cell_length_c [14.5355]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Pm5Tl2O]
_chemical_formula_sum '[Pm20 Tl8 O4]'
_cell_volume [886.7504]
_cell_formula_units_Z [4]
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  8  0.1364  0.5015  0.3931  1
  Pm  Pm1  4  0.0000  0.0000  0.0000  1
  Pm  Pm2  4  0.0483  0.2500  0.7924  1
  Pm  Pm3  4  0.2256  0.7500  0.6190  1
  Tl  Tl4  4  0.0580  0.7500  0.8053  1
  Tl  Tl5  4  0.2000  0.2500  0.5908  1
  O  O6  4  0.1856  0.2500  0.9500  1
]