data_[K2Ir8O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  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 [14.2361]
_cell_length_b [3.2087]
_cell_length_c [9.9253]
_cell_angle_alpha [90.0000]
_cell_angle_beta [132.4629]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K(IrO2)4]
_chemical_formula_sum '[K2 Ir8 O16]'
_cell_volume [334.4643]
_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
[
  K  K0  2  0.0000  0.0000  0.0000  1
  Ir  Ir1  4  0.1450  0.5000  0.4772  1
  Ir  Ir2  4  0.1616  0.0000  0.8136  1
  O  O3  4  0.0444  0.5000  0.7209  1
  O  O4  4  0.1451  0.0000  0.5998  1
  O  O5  4  0.1600  0.0000  0.3603  1
  O  O6  4  0.2128  0.0000  0.0623  1
]