data_[Pb4I8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pb  2.3300  1.8000  1.1225
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [8.4810]
_cell_length_b [4.4755]
_cell_length_c [14.0300]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [PbI2]
_chemical_formula_sum '[Pb4 I8]'
_cell_volume [532.5252]
_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
[
  Pb  Pb0  4  0.1081  0.7500  0.1392  1.0
  I  I1  4  0.0575  0.7500  0.7279  1.0
  I  I2  4  0.2102  0.2500  0.9758  1.0
]