data_[Zn4F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zn  1.6500  1.3500  0.8800
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Pba2]
_cell_length_a [5.2130]
_cell_length_b [10.1067]
_cell_length_c [16.4877]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [32]
_chemical_formula_structural [ZnF2]
_chemical_formula_sum '[Zn4 F8]'
_cell_volume [868.6706]
_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
[
  Zn  Zn0  4  0.2226  0.3800  0.4982  1
  F  F1  4  0.0862  0.7203  0.5219  1
  F  F2  2  0.0000  0.0000  0.5250  1
  F  F3  2  0.0000  0.5000  0.4348  1
]