data_[Na8Hg4Au8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
  Au  2.5400  1.3500  1.0700
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.5840]
_cell_length_b [5.7562]
_cell_length_c [8.9947]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.3148]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Na2HgAu2]
_chemical_formula_sum '[Na8 Hg4 Au8]'
_cell_volume [478.5956]
_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  8  0.1537  0.3612  0.6534  1.0
  Hg  Hg1  4  0.0000  0.2017  0.2500  1.0
  Au  Au2  8  0.1312  0.1282  0.0039  1.0
]