data_[Y4Ag12Hg8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [6.9298]
_cell_length_b [8.0320]
_cell_length_c [9.6819]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.0519]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [YAg3Hg2]
_chemical_formula_sum '[Y4 Ag12 Hg8]'
_cell_volume [512.3704]
_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
[
  Y  Y0  4  0.0000  0.1452  0.2500  1.0
  Ag  Ag1  8  0.1831  0.3890  0.0704  1.0
  Ag  Ag2  4  0.0000  0.4188  0.7500  1.0
  Hg  Hg3  8  0.1368  0.1435  0.5924  1.0
]