data_[Rb2Sn2I2F4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  I  2.6600  1.4000  1.2733
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.8839]
_cell_length_b [4.5342]
_cell_length_c [8.5519]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.1692]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbSnIF2]
_chemical_formula_sum '[Rb2 Sn2 I2 F4]'
_cell_volume [299.9198]
_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  0.3094  0.7500  0.0848  1.0
  Sn  Sn1  2  0.3254  0.7500  0.5833  1.0
  I  I2  2  0.0934  0.2500  0.7612  1.0
  F  F3  2  0.4514  0.2500  0.5656  1.0
  F  F4  2  0.4968  0.7500  0.8069  1.0
]