data_[Tl4Bi2Br12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Bi  2.0200  1.6000  1.0350
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P4_2/mnm]
_cell_length_a [7.2962]
_cell_length_b [7.2962]
_cell_length_c [13.4101]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [136]
_chemical_formula_structural [Tl2BiBr6]
_chemical_formula_sum '[Tl4 Bi2 Br12]'
_cell_volume [713.8788]
_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
[
  Tl  Tl0  4  0.0000  0.0000  0.3364  1.0
  Bi  Bi1  2  0.0000  0.0000  0.0000  1.0
  Br  Br2  8  0.1943  0.8057  0.1558  1.0
  Br  Br3  4  0.2225  0.7775  0.5000  1.0
]