data_[Hf3Cd3I18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  Cd  1.6900  1.5500  1.0900
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [7.3910]
_cell_length_b [7.3910]
_cell_length_c [19.9799]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [HfCdI6]
_chemical_formula_sum '[Hf3 Cd3 I18]'
_cell_volume [945.2033]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0000  1.0
  Cd  Cd1  3  -0.0000  0.0000  0.5000  1.0
  I  I2  18  0.0019  0.6825  0.9191  1.0
]