data_[Ag4Hg4Pb4]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.4301]
_cell_length_b [3.6390]
_cell_length_c [8.4864]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.5429]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [AgHgPb]
_chemical_formula_sum '[Ag4 Hg4 Pb4]'
_cell_volume [301.6224]
_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  4  0.1762  0.0000  0.0724  1.0
  Hg  Hg1  4  0.0003  0.5000  0.2009  1.0
  Pb  Pb2  4  0.1737  0.0000  0.6184  1.0
]