data_[Na8Sb2Ir2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sb  2.0500  1.4500  0.8300
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [5.4717]
_cell_length_b [9.4644]
_cell_length_c [5.6001]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.1337]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [Na4SbIrO6]
_chemical_formula_sum '[Na8 Sb2 Ir2 O12]'
_cell_volume [273.9852]
_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
[
  Na  Na0  2  0.0000  0.0091  0.5000  1
  Na  Na1  2  0.0000  0.3391  0.5000  1
  Na  Na2  2  0.0000  0.4993  0.0000  1
  Na  Na3  2  0.0000  0.6551  0.5000  1
  Sb  Sb4  2  0.0000  0.8325  0.0000  1
  Ir  Ir5  2  0.0000  0.1669  0.0000  1
  O  O6  4  0.2096  0.9961  0.2124  1
  O  O7  4  0.2409  0.8200  0.7871  1
  O  O8  4  0.2472  0.6829  0.2123  1
]