data_[Na8Cd2Hg4]
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 [P2_1/m]
_cell_length_a [8.1638]
_cell_length_b [6.2953]
_cell_length_c [8.7480]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.4623]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Na4CdHg2]
_chemical_formula_sum '[Na8 Cd2 Hg4]'
_cell_volume [409.2285]
_cell_formula_units_Z [2]
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  0.4119  0.0057  0.7807  1.0
  Na  Na1  2  0.0248  0.2500  0.4034  1.0
  Na  Na2  2  0.1728  0.7500  0.3024  1.0
  Cd  Cd3  2  0.1856  0.2500  0.0612  1.0
  Hg  Hg4  2  0.2110  0.7500  0.9720  1.0
  Hg  Hg5  2  0.4186  0.2500  0.4431  1.0
]