data_[K18Rb3Ag6O3]
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
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [8.0786]
_cell_length_b [8.0786]
_cell_length_c [25.1364]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [K6RbAg2O]
_chemical_formula_sum '[K18 Rb3 Ag6 O3]'
_cell_volume [1420.7082]
_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
[
  K  K0  9  0.0273  0.4841  0.9438  1
  K  K1  9  0.1615  0.7967  0.0666  1
  Rb  Rb2  3  0.0000  0.0000  0.8279  1
  Ag  Ag3  3  0.0000  0.0000  0.5132  1
  Ag  Ag4  3  0.0000  0.0000  0.9676  1
  O  O5  3  0.0000  0.0000  0.3367  1
]