data_[Tl2Ag2Pb2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.3823]
_cell_length_b [8.0087]
_cell_length_c [8.9293]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.4372]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [TlAgPbBr4]
_chemical_formula_sum '[Tl2 Ag2 Pb2 Br8]'
_cell_volume [503.6672]
_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  2  0.2199  0.2500  0.0549  1.0
  Ag  Ag1  2  0.2281  0.7500  0.3089  1.0
  Pb  Pb2  2  0.2046  0.2500  0.5519  1.0
  Br  Br3  4  0.0177  0.5111  0.7295  1.0
  Br  Br4  2  0.4790  0.7500  0.1437  1.0
  Br  Br5  2  0.4885  0.7500  0.6012  1.0
]