data_[Na6Hg2F14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [8.1778]
_cell_length_b [8.1487]
_cell_length_c [6.1652]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.1117]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Na3HgF7]
_chemical_formula_sum '[Na6 Hg2 F14]'
_cell_volume [318.7763]
_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  0.4888  0.2661  0.4772  1
  Na  Na1  2  0.4935  0.0000  0.9222  1
  Hg  Hg2  2  0.0494  0.0000  0.0384  1
  F  F3  4  0.1138  0.2747  0.2198  1
  F  F4  4  0.3441  0.2978  0.7112  1
  F  F5  2  0.1739  0.0000  0.8242  1
  F  F6  2  0.3746  0.5000  0.1842  1
  F  F7  2  0.3901  0.0000  0.4647  1
]