data_[Na6Cd4Hg8]
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 [11.2157]
_cell_length_b [5.0945]
_cell_length_c [9.5235]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.7002]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3(CdHg2)2]
_chemical_formula_sum '[Na6 Cd4 Hg8]'
_cell_volume [457.9080]
_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  0.1639  0.5000  0.6705  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Cd  Cd2  4  0.1136  0.5000  0.2814  1.0
  Hg  Hg3  4  0.0603  0.0000  0.3920  1.0
  Hg  Hg4  4  0.2164  0.5000  0.0548  1.0
]