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 [Cmm2]
_cell_length_a [7.3669]
_cell_length_b [8.3678]
_cell_length_c [16.1511]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [35]
_chemical_formula_structural [SnF2]
_chemical_formula_sum '[Sn4 F8]'
_cell_volume [995.6253]
_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  4  0.0000  0.2427  0.4626  1
  F  F1  4  0.2500  0.2500  0.5338  1
  F  F2  2  0.0000  0.0000  0.5140  1
  F  F3  2  0.0000  0.5000  0.4931  1
]