data_[Rb8Nb4S12]
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
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.8627]
_cell_length_b [12.5314]
_cell_length_c [6.5087]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.4539]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2NbS3]
_chemical_formula_sum '[Rb8 Nb4 S12]'
_cell_volume [722.2106]
_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  0.1625  0.1574  0.2611  1.0
  Nb  Nb1  4  0.0785  0.5000  0.2146  1.0
  S  S2  4  0.0000  0.3507  0.0000  1.0
  S  S3  4  0.0000  0.3780  0.5000  1.0
  S  S4  4  0.1617  0.0000  0.7815  1.0
]