data_[Rb16S4F8]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.4271]
_cell_length_b [13.4684]
_cell_length_c [13.9781]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Rb4SF2]
_chemical_formula_sum '[Rb16 S4 F8]'
_cell_volume [833.4646]
_cell_formula_units_Z [4]
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  0.2247  0.6136  1
  Rb  Rb1  4  0.0000  0.0576  0.2500  1
  Rb  Rb2  4  0.0000  0.5000  0.0000  1
  S  S3  4  0.0000  0.3878  0.2500  1
  F  F4  8  0.0000  0.1302  0.0598  1
]