data_[Ag4Hg8]
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
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [11.3829]
_cell_length_b [3.0376]
_cell_length_c [8.2755]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.6274]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [AgHg2]
_chemical_formula_sum '[Ag4 Hg8]'
_cell_volume [282.1150]
_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  2  0.1254  0.5000  0.2738  1.0
  Ag  Ag1  2  0.4631  0.5000  0.0290  1.0
  Hg  Hg2  2  0.1255  0.0000  0.5789  1.0
  Hg  Hg3  2  0.1917  0.5000  0.9432  1.0
  Hg  Hg4  2  0.3599  0.0000  0.3017  1.0
  Hg  Hg5  2  0.4010  0.0000  0.7068  1.0
]