data_[K3Rb6Sb3F18]
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
  Sb  2.0500  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [6.7768]
_cell_length_b [6.7768]
_cell_length_c [15.9018]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [KRb2SbF6]
_chemical_formula_sum '[K3 Rb6 Sb3 F18]'
_cell_volume [632.4470]
_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  3  0.0000  0.0000  0.2372  1.0
  K  K1  3  0.0000  0.0000  0.4942  1.0
  Rb  Rb2  3  0.0000  0.0000  0.7307  1.0
  Sb  Sb3  3  0.0000  0.0000  0.9941  1.0
  F  F4  9  0.0075  0.4106  0.2678  1.0
  F  F5  9  0.0610  0.7942  0.0794  1.0
]