data_[K2Li2Tl2Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Li  0.9800  1.4500  0.9000
  Tl  1.6200  1.9000  1.3325
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmma]
_cell_length_a [6.0488]
_cell_length_b [7.4734]
_cell_length_c [6.3607]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [51]
_chemical_formula_structural [KLiTlHg2]
_chemical_formula_sum '[K2 Li2 Tl2 Hg4]'
_cell_volume [287.5372]
_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
[
  K  K0  2  0.2500  0.5000  0.2974  1.0
  Li  Li1  2  0.0000  0.0000  0.0000  1.0
  Tl  Tl2  2  0.2500  0.0000  0.4134  1.0
  Hg  Hg3  4  0.2500  0.2826  0.8190  1.0
]