data_[Na2Zn1Hg1F8]
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 [P-1]
_cell_length_a [4.9524]
_cell_length_b [5.1311]
_cell_length_c [7.0688]
_cell_angle_alpha [85.6562]
_cell_angle_beta [86.1054]
_cell_angle_gamma [85.7331]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na2ZnHgF8]
_chemical_formula_sum '[Na2 Zn1 Hg1 F8]'
_cell_volume [178.2626]
_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  0.4958  0.4934  0.7664  1.0
  Zn  Zn1  1  0.0000  0.0000  0.0000  1.0
  Hg  Hg2  1  0.0000  0.0000  0.5000  1.0
  F  F3  2  0.1759  0.1896  0.7851  1.0
  F  F4  2  0.1791  0.1836  0.2527  1.0
  F  F5  2  0.2868  0.7335  0.9960  1.0
  F  F6  2  0.3087  0.7053  0.4988  1.0
]