data_[Na2Cd2Hg4F16]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [5.5406]
_cell_length_b [5.5406]
_cell_length_c [11.0946]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [NaCdHg2F8]
_chemical_formula_sum '[Na2 Cd2 Hg4 F16]'
_cell_volume [340.5854]
_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  2  0.0000  0.5000  0.7500  1.0
  Cd  Cd1  2  0.0000  0.0000  0.0000  1.0
  Hg  Hg2  2  0.0000  0.0000  0.5000  1.0
  Hg  Hg3  2  0.0000  0.5000  0.2500  1.0
  F  F4  16  0.2456  0.2518  0.1229  1.0
]