data_[Na6Cd8Hg16]
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 [C2/m]
_cell_length_a [12.2472]
_cell_length_b [12.1451]
_cell_length_c [6.6687]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.7336]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3(CdHg2)4]
_chemical_formula_sum '[Na6 Cd8 Hg16]'
_cell_volume [852.6157]
_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  0.2500  0.2500  0.0000  1.0
  Na  Na1  2  0.0000  0.0000  0.5000  1.0
  Cd  Cd2  4  0.2500  0.2500  0.5000  1.0
  Cd  Cd3  2  0.0000  0.0000  0.0000  1.0
  Cd  Cd4  2  0.0000  0.5000  0.5000  1.0
  Hg  Hg5  4  0.0000  0.2536  0.5000  1.0
  Hg  Hg6  4  0.0000  0.2665  0.0000  1.0
  Hg  Hg7  4  0.1513  0.5000  0.0407  1.0
  Hg  Hg8  4  0.2446  0.0000  0.4356  1.0
]