data_[Na2Ag2Hg2F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P4_2nm]
_cell_length_a [5.1750]
_cell_length_b [5.1750]
_cell_length_c [10.5899]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [102]
_chemical_formula_structural [NaAgHgF6]
_chemical_formula_sum '[Na2 Ag2 Hg2 F12]'
_cell_volume [283.6037]
_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  0.0000  0.6672  1.0
  Ag  Ag1  2  0.0000  0.0000  0.3335  1.0
  Hg  Hg2  2  0.0000  0.0000  0.9988  1.0
  F  F3  4  0.1857  0.8143  0.1779  1.0
  F  F4  4  0.1875  0.8125  0.4878  1.0
  F  F5  4  0.2084  0.7916  0.8345  1.0
]