data_[Rb14Br2O4F4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Br  2.9600  1.1500  0.8825
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.6897]
_cell_length_b [5.6897]
_cell_length_c [22.8155]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Rb7Br(OF)2]
_chemical_formula_sum '[Rb14 Br2 O4 F4]'
_cell_volume [738.5914]
_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  0.0000  0.5000  0.1223  1
  Rb  Rb1  4  0.0000  0.0000  0.2635  1
  Rb  Rb2  2  0.0000  0.0000  0.5000  1
  Br  Br3  2  0.0000  0.0000  0.0000  1
  O  O4  4  0.0000  0.0000  0.3802  1
  F  F5  4  0.0000  0.5000  0.2500  1
]