data_[Li2Tl2Hg2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  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 [P2_1/m]
_cell_length_a [6.8132]
_cell_length_b [7.9051]
_cell_length_c [8.9436]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.5745]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [LiTlHgBr4]
_chemical_formula_sum '[Li2 Tl2 Hg2 Br8]'
_cell_volume [471.8938]
_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
[
  Li  Li0  2  0.3064  0.2500  0.6819  1.0
  Tl  Tl1  2  0.2068  0.2500  0.0625  1.0
  Hg  Hg2  2  0.2096  0.7500  0.3537  1.0
  Br  Br3  4  0.0677  0.0080  0.7320  1.0
  Br  Br4  2  0.3942  0.7500  0.0968  1.0
  Br  Br5  2  0.4619  0.2500  0.4430  1.0
]