data_[Hg4F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2]
_cell_length_a [6.8588]
_cell_length_b [17.7759]
_cell_length_c [7.0742]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.4923]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [3]
_chemical_formula_structural [HgF2]
_chemical_formula_sum '[Hg4 F8]'
_cell_volume [860.9038]
_cell_formula_units_Z [4]
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
[
  Hg  Hg0  2  0.2293  0.5406  0.8709  1
  Hg  Hg1  2  0.2321  0.4622  0.3915  1
  F  F2  2  0.0681  0.4340  0.6997  1
  F  F3  2  0.1463  0.5554  0.1581  1
  F  F4  2  0.3068  0.5645  0.5925  1
  F  F5  1  0.5000  0.4083  0.5000  1
  F  F6  1  0.5000  0.4783  0.0000  1
]