data_[Sr4Sn2F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Sn  1.9600  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [6.3508]
_cell_length_b [14.8566]
_cell_length_c [4.0657]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.3858]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Sr2SnF8]
_chemical_formula_sum '[Sr4 Sn2 F16]'
_cell_volume [312.7354]
_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
[
  Sr  Sr0  4  0.4786  0.8320  0.9763  1.0
  Sn  Sn1  2  0.4660  0.5000  0.0345  1.0
  F  F2  4  0.2464  0.9042  0.2837  1.0
  F  F3  4  0.2624  0.3906  0.7144  1.0
  F  F4  4  0.4852  0.2681  0.4768  1.0
  F  F5  2  0.1051  0.0000  0.6585  1.0
  F  F6  2  0.1501  0.5000  0.0661  1.0
]