data_[Rb2Tl2Cu4S4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tl  1.6200  1.9000  1.3325
  Cu  1.9000  1.3500  0.8200
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.5162]
_cell_length_b [5.1089]
_cell_length_c [9.7434]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.5314]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbTl(CuS)2]
_chemical_formula_sum '[Rb2 Tl2 Cu4 S4]'
_cell_volume [350.3780]
_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  0.3027  0.7500  0.5932  1
  Tl  Tl1  2  0.2784  0.7500  0.0753  1
  Cu  Cu2  4  0.0061  0.0011  0.7702  1
  S  S3  2  0.2349  0.2500  0.3307  1
  S  S4  2  0.2544  0.2500  0.8493  1
]