data_[Rb2Nb2Tl4S8]
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
  Tl  1.6200  1.9000  1.3325
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [9.0204]
_cell_length_b [9.6423]
_cell_length_c [6.4668]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [RbNb(TlS2)2]
_chemical_formula_sum '[Rb2 Nb2 Tl4 S8]'
_cell_volume [562.4592]
_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  2  0.0000  0.1014  0.5571  1
  Nb  Nb1  2  0.0000  0.7781  0.9686  1
  Tl  Tl2  4  0.2051  0.3450  0.0888  1
  S  S3  4  0.2177  0.6681  0.0642  1
  S  S4  2  0.0000  0.0062  0.0568  1
  S  S5  2  0.0000  0.7661  0.6115  1
]