data_[Rb4Nb4S4O4]
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 [P2_1/c]
_cell_length_a [7.7488]
_cell_length_b [6.2072]
_cell_length_c [7.2393]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.4776]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [RbNbSO]
_chemical_formula_sum '[Rb4 Nb4 S4 O4]'
_cell_volume [341.2364]
_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  0.1170  0.7155  0.4864  1
  Nb  Nb1  4  0.4643  0.1029  0.6575  1
  S  S2  4  0.2712  0.1447  0.3417  1
  O  O3  4  0.3724  0.6434  0.2944  1
]