data_[K3Rb18Au6O3]
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
  Au  2.5400  1.3500  1.0700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [8.4242]
_cell_length_b [8.4242]
_cell_length_c [24.6830]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [KRb6Au2O]
_chemical_formula_sum '[K3 Rb18 Au6 O3]'
_cell_volume [1516.9902]
_cell_formula_units_Z [3]
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
[
  Rb  Rb0  9  0.0318  0.5572  0.2635  1.0
  Rb  Rb1  9  0.1155  0.3639  0.3942  1.0
  K  K2  3  0.0000  0.0000  0.1687  1.0
  Au  Au3  3  0.0000  0.0000  0.0324  1.0
  Au  Au4  3  0.0000  0.0000  0.4860  1.0
  O  O5  3  0.0000  0.0000  0.6648  1.0
]