data_[Rb4S4O14]
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
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.7938]
_cell_length_b [10.5677]
_cell_length_c [5.2077]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.1660]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2S2O7]
_chemical_formula_sum '[Rb4 S4 O14]'
_cell_volume [425.5675]
_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  4  0.0000  0.3014  0.0000  1.0
  S  S1  4  0.2008  0.0000  0.4406  1.0
  O  O2  8  0.2168  0.1162  0.2937  1.0
  O  O3  4  0.1979  0.5000  0.3041  1.0
  O  O4  2  0.0000  0.0000  0.5000  1.0
]