data_[Rb4Tl6Sb4]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.3049]
_cell_length_b [4.9336]
_cell_length_c [8.7671]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.6745]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Tl3Sb2]
_chemical_formula_sum '[Rb4 Tl6 Sb4]'
_cell_volume [534.7972]
_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  4  0.1355  0.0000  0.7773  1.0
  Tl  Tl1  4  0.1259  0.5000  0.4453  1.0
  Tl  Tl2  2  0.0000  0.5000  0.0000  1.0
  Sb  Sb3  4  0.1561  0.0000  0.2404  1.0
]