data_[Rb2S2O4F2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  S  2.5800  1.0000  0.8800
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [4.8856]
_cell_length_b [6.0300]
_cell_length_c [7.4003]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.7920]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbSO2F]
_chemical_formula_sum '[Rb2 S2 O4 F2]'
_cell_volume [207.5884]
_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  2  0.1568  0.2500  0.2848  1.0
  S  S1  2  0.3990  0.2500  0.8161  1.0
  O  O2  4  0.3348  0.0470  0.6983  1.0
  F  F3  2  0.2080  0.7500  0.1233  1.0
]