data_[Ag8Hg4Cl20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.2239]
_cell_length_b [13.7067]
_cell_length_c [12.8435]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ag2HgCl5]
_chemical_formula_sum '[Ag8 Hg4 Cl20]'
_cell_volume [919.6178]
_cell_formula_units_Z [4]
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
[
  Ag  Ag0  8  0.0000  0.1435  0.5639  1.0
  Hg  Hg1  4  0.0000  0.2107  0.2500  1.0
  Cl  Cl2  8  0.0000  0.0707  0.1141  1.0
  Cl  Cl3  8  0.0000  0.3328  0.0784  1.0
  Cl  Cl4  4  0.0000  0.2033  0.7500  1.0
]