data_[K2Tl2Sn2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [5.8322]
_cell_length_b [5.8322]
_cell_length_c [16.7209]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [KTlSnBr4]
_chemical_formula_sum '[K2 Tl2 Sn2 Br8]'
_cell_volume [568.7621]
_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
[
  K  K0  2  0.0000  0.0000  0.6322  1
  Tl  Tl1  2  0.0000  0.0000  0.3578  1
  Sn  Sn2  2  0.0000  0.0000  0.9971  1
  Br  Br3  4  0.0000  0.5000  0.0044  1
  Br  Br4  2  0.0000  0.0000  0.1785  1
  Br  Br5  2  0.0000  0.0000  0.8256  1
]