data_[Tl4Hg2Br16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Hg  2.0000  1.5000  1.2450
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.1490]
_cell_length_b [11.2271]
_cell_length_c [6.9215]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.9137]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tl2HgBr8]
_chemical_formula_sum '[Tl4 Hg2 Br16]'
_cell_volume [942.8595]
_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  0.2270  0.0000  0.6294  1.0
  Hg  Hg1  2  0.0000  0.0000  0.0000  1.0
  Br  Br2  8  0.1013  0.1732  0.7743  1.0
  Br  Br3  4  0.0738  0.5000  0.2304  1.0
  Br  Br4  4  0.2152  0.0000  0.2501  1.0
]