data_[Cs8Na8Ir4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Na  0.9300  1.8000  1.1600
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.1233]
_cell_length_b [6.0127]
_cell_length_c [9.7531]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.1347]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cs2Na2IrO4]
_chemical_formula_sum '[Cs8 Na8 Ir4 O16]'
_cell_volume [689.4096]
_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
[
  Cs  Cs0  4  0.1656  0.5000  0.8631  1.0
  Cs  Cs1  4  0.1692  0.5000  0.2409  1.0
  Na  Na2  4  0.0265  0.0000  0.6581  1.0
  Na  Na3  4  0.2157  0.0000  0.4256  1.0
  Ir  Ir4  2  0.0000  0.0000  0.0000  1.0
  Ir  Ir5  2  0.0000  0.5000  0.5000  1.0
  O  O6  8  0.1167  0.2721  0.5301  1.0
  O  O7  4  0.1050  0.0000  0.1864  1.0
  O  O8  4  0.1246  0.0000  0.9075  1.0
]