data_[K4Rb12O6F2]
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
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.0696]
_cell_length_b [8.3661]
_cell_length_c [6.6693]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.0960]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Rb6O3F]
_chemical_formula_sum '[K4 Rb12 O6 F2]'
_cell_volume [784.8822]
_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
[
  Rb  Rb0  8  0.0865  0.2573  0.7493  1.0
  K  K1  4  0.1665  0.5000  0.2763  1.0
  Rb  Rb2  4  0.1701  0.0000  0.3062  1.0
  O  O3  4  0.2500  0.2500  0.5000  1.0
  O  O4  2  0.0000  0.5000  0.0000  1.0
  F  F5  2  0.0000  0.0000  0.5000  1.0
]