data_[Na4Ag4Hg4Cl20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  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 [C2/c]
_cell_length_a [8.8241]
_cell_length_b [12.4527]
_cell_length_c [9.5984]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.7236]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaAgHgCl5]
_chemical_formula_sum '[Na4 Ag4 Hg4 Cl20]'
_cell_volume [950.1913]
_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
[
  Na  Na0  4  0.0000  0.3062  0.7500  1.0
  Ag  Ag1  4  0.0000  0.0000  0.0000  1.0
  Hg  Hg2  4  0.0000  0.3274  0.2500  1.0
  Cl  Cl3  8  0.0900  0.2442  0.0680  1.0
  Cl  Cl4  8  0.1932  0.4931  0.3987  1.0
  Cl  Cl5  4  0.0000  0.0574  0.7500  1.0
]