data_[Na2Hg6F14]
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 [C2/m]
_cell_length_a [7.9030]
_cell_length_b [8.1662]
_cell_length_c [6.7157]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.7728]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaHg3F7]
_chemical_formula_sum '[Na2 Hg6 F14]'
_cell_volume [356.0163]
_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  0.5000  1
  Hg  Hg1  4  0.0000  0.2253  0.0000  1
  Hg  Hg2  2  0.0000  0.0000  0.5000  1
  F  F3  8  0.1276  0.2356  0.7449  1
  F  F4  4  0.1498  0.0000  0.2767  1
  F  F5  2  0.0000  0.5000  0.0000  1
]