data_[Tl2Ag2Hg2F8]
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
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.7409]
_cell_length_b [5.9264]
_cell_length_c [7.5124]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.2772]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [TlAgHgF4]
_chemical_formula_sum '[Tl2 Ag2 Hg2 F8]'
_cell_volume [286.5766]
_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  0.2517  0.7500  0.0264  1.0
  Ag  Ag1  2  0.1474  0.7500  0.5395  1.0
  Hg  Hg2  2  0.2912  0.2500  0.3600  1.0
  F  F3  4  0.0177  0.0122  0.2639  1.0
  F  F4  2  0.4316  0.7500  0.4008  1.0
  F  F5  2  0.4854  0.7500  0.8111  1.0
]