data_[K2Ag1Hg3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [4.3431]
_cell_length_b [5.1652]
_cell_length_c [8.8934]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [K2AgHg3]
_chemical_formula_sum '[K2 Ag1 Hg3]'
_cell_volume [199.5065]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.4957  1.0
  K  K1  1  0.0000  0.5000  0.0061  1.0
  Ag  Ag2  1  0.5000  0.5000  0.3282  1.0
  Hg  Hg3  1  0.5000  0.0000  0.1793  1.0
  Hg  Hg4  1  0.5000  0.0000  0.8375  1.0
  Hg  Hg5  1  0.5000  0.5000  0.6533  1.0
]