data_[Ge2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ge  2.0100  1.2500  0.7700
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P222_1]
_cell_length_a [5.1545]
_cell_length_b [17.7740]
_cell_length_c [7.1452]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [17]
_chemical_formula_structural [GeF4]
_chemical_formula_sum '[Ge2 F8]'
_cell_volume [654.6171]
_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
[
  Ge  Ge0  2  0.0004  0.0000  0.0000  1
  F  F1  4  0.1625  0.0780  0.9227  1
  F  F2  2  0.0000  0.0426  0.2500  1
  F  F3  2  0.3321  0.0000  0.5000  1
]