data_[Hf4Sn4I2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  Sn  1.9600  1.4500  0.8300
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [8.3606]
_cell_length_b [8.3606]
_cell_length_c [3.5453]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Hf2Sn2I]
_chemical_formula_sum '[Hf4 Sn4 I2]'
_cell_volume [247.8152]
_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
[
  Hf  Hf0  4  0.1614  0.3386  0.0000  1
  Sn  Sn1  4  0.1329  0.6329  0.5000  1
  I  I2  2  0.0000  0.0000  0.0000  1
]