data_[Na4Ga4Ir4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ga  1.8100  1.3000  0.7600
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [6.1286]
_cell_length_b [6.3726]
_cell_length_c [8.8113]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaGaIrO4]
_chemical_formula_sum '[Na4 Ga4 Ir4 O16]'
_cell_volume [344.1254]
_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
[
  Na  Na0  4  0.0000  0.2500  0.8655  1
  Ga  Ga1  4  0.2500  0.2500  0.2500  1
  Ir  Ir2  4  0.0000  0.0000  0.5000  1
  O  O3  8  0.0000  0.0406  0.2717  1
  O  O4  8  0.2104  0.2500  0.4816  1
]