data_[Na2Zn1Hg1F6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zn  1.6500  1.3500  0.8800
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [5.6473]
_cell_length_b [5.6473]
_cell_length_c [5.2092]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [Na2ZnHgF6]
_chemical_formula_sum '[Na2 Zn1 Hg1 F6]'
_cell_volume [166.1322]
_cell_formula_units_Z [1]
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  0.9795  1.0
  Zn  Zn1  1  0.0000  0.0000  0.5999  1.0
  Hg  Hg2  1  0.5000  0.5000  0.5578  1.0
  F  F3  4  0.2371  0.2371  0.7383  1.0
  F  F4  1  0.0000  0.0000  0.2331  1.0
  F  F5  1  0.5000  0.5000  0.1437  1.0
]