data_[Rb4Nb8Cu4S24]
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
  Cu  1.9000  1.3500  0.8200
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [11.4121]
_cell_length_b [13.1345]
_cell_length_c [7.7661]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.2365]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbNb2CuS6]
_chemical_formula_sum '[Rb4 Nb8 Cu4 S24]'
_cell_volume [1077.5003]
_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  0.0000  0.1431  0.7500  1
  Nb  Nb1  8  0.1432  0.4304  0.6387  1
  Cu  Cu2  4  0.0000  0.1803  0.2500  1
  S  S3  8  0.1114  0.4228  0.9450  1
  S  S4  8  0.1229  0.2873  0.4776  1
  S  S5  8  0.1422  0.0727  0.1989  1
]