data_[Sn4F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sn  1.9600  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Pma2]
_cell_length_a [6.4167]
_cell_length_b [19.7498]
_cell_length_c [5.1409]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [28]
_chemical_formula_structural [SnF2]
_chemical_formula_sum '[Sn4 F8]'
_cell_volume [651.5027]
_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
[
  Sn  Sn0  2  0.2500  0.4238  0.7141  1
  Sn  Sn1  2  0.2500  0.5906  0.2369  1
  F  F2  4  0.0105  0.6202  0.9780  1
  F  F3  2  0.0000  0.5000  0.5643  1
  F  F4  2  0.2500  0.4941  0.0418  1
]