data_[Pm32Tl16I8]
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
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Fd-3m]
_cell_length_a [13.3090]
_cell_length_b [13.3090]
_cell_length_c [13.3090]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [227]
_chemical_formula_structural [Pm4Tl2I]
_chemical_formula_sum '[Pm32 Tl16 I8]'
_cell_volume [2357.3928]
_cell_formula_units_Z [8]
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  32  0.1058  0.1058  0.3942  1
  Tl  Tl1  16  0.1250  0.1250  0.6250  1
  I  I2  8  0.0000  0.0000  0.0000  1
]