data_[Na16Cd4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.9841]
_cell_length_b [23.0719]
_cell_length_c [6.5810]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na4CdHg]
_chemical_formula_sum '[Na16 Cd4 Hg4]'
_cell_volume [756.7566]
_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  4  0.0000  0.0749  0.6839  1.0
  Na  Na1  4  0.0000  0.2274  0.7635  1.0
  Na  Na2  4  0.0000  0.3572  0.5044  1.0
  Na  Na3  4  0.0000  0.4716  0.8115  1.0
  Cd  Cd4  4  0.0000  0.3452  0.0224  1.0
  Hg  Hg5  4  0.0000  0.1729  0.2809  1.0
]