data_[Ag7Hg9]
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 [P6mm]
_cell_length_a [7.8945]
_cell_length_b [7.8945]
_cell_length_c [20.5732]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [183]
_chemical_formula_structural [Ag7Hg9]
_chemical_formula_sum '[Ag7 Hg9]'
_cell_volume [1110.4012]
_cell_formula_units_Z [1]
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  6  0.2118  0.7882  0.4518  1
  Ag  Ag1  1  0.0000  0.0000  0.6007  1
  Hg  Hg2  6  0.2113  0.4226  0.5984  1
  Hg  Hg3  2  0.3333  0.6667  0.3298  1
  Hg  Hg4  1  0.0000  0.0000  0.4386  1
]