data_[Ag4Hg4F4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cc]
_cell_length_a [7.1935]
_cell_length_b [7.0952]
_cell_length_c [5.5368]
_cell_angle_alpha [90.0000]
_cell_angle_beta [128.6741]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [9]
_chemical_formula_structural [AgHgF]
_chemical_formula_sum '[Ag4 Hg4 F4]'
_cell_volume [220.6267]
_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
[
  Ag  Ag0  4  0.3341  0.0727  0.7343  1.0
  Hg  Hg1  4  0.1987  0.3203  0.1895  1.0
  F  F2  4  0.4262  0.3758  0.9771  1.0
]