data_[Rb4Nb4S8O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Nb  1.6000  1.4500  0.8200
  S  2.5800  1.0000  0.8800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [17.6749]
_cell_length_b [5.2548]
_cell_length_c [9.0800]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [RbNbS2O9]
_chemical_formula_sum '[Rb4 Nb4 S8 O36]'
_cell_volume [843.3393]
_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  4  0.0650  0.7500  0.6711  1
  Nb  Nb1  4  0.1903  0.2500  0.0793  1
  S  S2  4  0.0696  0.7500  0.1309  1
  S  S3  4  0.1951  0.2500  0.4772  1
  O  O4  8  0.1222  0.5231  0.1629  1
  O  O5  8  0.2231  0.0195  0.5638  1
  O  O6  4  0.0111  0.7500  0.2427  1
  O  O7  4  0.0466  0.7500  0.9788  1
  O  O8  4  0.1132  0.2500  0.4790  1
  O  O9  4  0.1596  0.2500  0.8984  1
  O  O10  4  0.2313  0.2500  0.3317  1
]