data_[Na3Ag6Ir3Cl18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Ir  2.2000  1.3500  0.7650
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [6.7898]
_cell_length_b [6.7898]
_cell_length_c [18.1692]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [NaAg2IrCl6]
_chemical_formula_sum '[Na3 Ag6 Ir3 Cl18]'
_cell_volume [725.4003]
_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
[
  Na  Na0  3  0.0000  0.0000  0.0000  1.0
  Ag  Ag1  6  0.0000  0.0000  0.2014  1.0
  Ir  Ir2  3  -0.0000  0.0000  0.5000  1.0
  Cl  Cl3  18  0.0195  0.2964  0.5740  1.0
]