data_[K2Ag2Hg2I8]
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
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.4767]
_cell_length_b [8.7112]
_cell_length_c [9.6212]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.2106]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KAgHgI4]
_chemical_formula_sum '[K2 Ag2 Hg2 I8]'
_cell_volume [612.4662]
_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  0.1928  0.2500  0.0584  1.0
  Ag  Ag1  2  0.2939  0.2500  0.6986  1.0
  Hg  Hg2  2  0.2242  0.7500  0.3311  1.0
  I  I3  4  0.0374  0.0076  0.7319  1.0
  I  I4  2  0.3910  0.7500  0.0729  1.0
  I  I5  2  0.4600  0.2500  0.4582  1.0
]