data_[Rb2Tl4Sb4]
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 [13.7859]
_cell_length_b [4.5261]
_cell_length_c [6.3789]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.3626]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb(TlSb)2]
_chemical_formula_sum '[Rb2 Tl4 Sb4]'
_cell_volume [379.8832]
_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  0.0000  0.0000  1.0
  Tl  Tl1  4  0.1263  0.5000  0.5424  1.0
  Sb  Sb2  4  0.2377  0.5000  0.1467  1.0
]