data_[Tl4Cu2I2Br6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Cu  1.9000  1.3500  0.8200
  I  2.6600  1.4000  1.2733
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.4698]
_cell_length_b [5.4936]
_cell_length_c [15.8581]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Tl2CuIBr3]
_chemical_formula_sum '[Tl4 Cu2 I2 Br6]'
_cell_volume [476.5182]
_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  0.3616  1
  Cu  Cu1  2  0.0000  0.0000  0.0000  1
  I  I2  2  0.0000  0.5000  0.5000  1
  Br  Br3  4  0.0000  0.0000  0.1572  1
  Br  Br4  2  0.0000  0.5000  0.0000  1
]