data_[Cs3Hf3I18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Hf  1.3000  1.5500  0.8500
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [8.0869]
_cell_length_b [8.0869]
_cell_length_c [21.9357]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [CsHfI6]
_chemical_formula_sum '[Cs3 Hf3 I18]'
_cell_volume [1242.3659]
_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
[
  Cs  Cs0  3  -0.0000  -0.0000  0.5000  1
  Hf  Hf1  3  0.0000  0.0000  0.0000  1
  I  I2  18  0.0024  0.5012  0.5918  1
]