data_[Ag4Ir4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [4.4091]
_cell_length_b [4.4091]
_cell_length_c [11.9681]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [AgIrO2]
_chemical_formula_sum '[Ag4 Ir4 O8]'
_cell_volume [232.6637]
_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
[
  Ag  Ag0  4  0.0000  0.0000  0.5000  1
  Ir  Ir1  4  0.0000  0.0000  0.0000  1
  O  O2  8  0.1674  0.2500  0.1250  1
]