data_[Rb6Cd3Ag6F18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cd  1.6900  1.5500  1.0900
  Ag  1.9300  1.6000  1.0867
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [6.8241]
_cell_length_b [6.8241]
_cell_length_c [17.6344]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Rb2CdAg2F6]
_chemical_formula_sum '[Rb6 Cd3 Ag6 F18]'
_cell_volume [711.1893]
_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  6  0.0000  0.0000  0.2110  1.0
  Cd  Cd1  3  0.0000  0.0000  0.0000  1.0
  Ag  Ag2  6  0.0000  0.0000  0.4190  1.0
  F  F3  18  0.0432  0.5216  0.7504  1.0
]