data_[Cs6Ag6Hg3Cl18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  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 [R-3m]
_cell_length_a [7.9402]
_cell_length_b [7.9402]
_cell_length_c [20.3009]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Cs2Ag2HgCl6]
_chemical_formula_sum '[Cs6 Ag6 Hg3 Cl18]'
_cell_volume [1108.4418]
_cell_formula_units_Z [3]
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
[
  Cs  Cs0  6  0.0000  0.0000  0.2295  1.0
  Ag  Ag1  6  0.0000  0.0000  0.4260  1.0
  Hg  Hg2  3  0.0000  0.0000  0.0000  1.0
  Cl  Cl3  18  0.0279  0.5140  0.7518  1.0
]