data_[Na6Cd8Hg4]
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 [11.1550]
_cell_length_b [5.1419]
_cell_length_c [9.4739]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.0247]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3(Cd2Hg)2]
_chemical_formula_sum '[Na6 Cd8 Hg4]'
_cell_volume [455.6067]
_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  0.1684  0.5000  0.6648  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Cd  Cd2  4  0.0534  0.0000  0.3877  1.0
  Cd  Cd3  4  0.2222  0.5000  0.0542  1.0
  Hg  Hg4  4  0.1105  0.5000  0.2765  1.0
]