data_[Tl4Sn2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.0788]
_cell_length_b [3.7937]
_cell_length_c [7.2451]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.0163]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tl2SnF4]
_chemical_formula_sum '[Tl4 Sn2 F8]'
_cell_volume [311.2716]
_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
[
  Tl  Tl0  4  0.1796  0.5000  0.6681  1.0
  Sn  Sn1  2  0.0000  0.0000  0.0000  1.0
  F  F2  4  0.1213  0.0000  0.3780  1.0
  F  F3  4  0.1243  0.5000  0.0184  1.0
]