data_[K3Rb1Ir2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [6.3992]
_cell_length_b [6.3992]
_cell_length_c [8.1826]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [K3Rb(IrO4)2]
_chemical_formula_sum '[K3 Rb1 Ir2 O8]'
_cell_volume [290.1828]
_cell_formula_units_Z [1]
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  0.3333  0.6667  0.3455  1.0
  K  K1  1  0.0000  0.0000  0.0000  1.0
  Rb  Rb2  1  0.0000  0.0000  0.5000  1.0
  Ir  Ir3  2  0.3333  0.6667  0.8143  1.0
  O  O4  6  0.1833  0.3666  0.7167  1.0
  O  O5  2  0.3333  0.6667  0.0334  1.0
]