data_[K2Tl2Ag2I8]
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
  Ag  1.9300  1.6000  1.0867
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.7710]
_cell_length_b [6.7826]
_cell_length_c [10.2089]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.1694]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KTlAgI4]
_chemical_formula_sum '[K2 Tl2 Ag2 I8]'
_cell_volume [580.2629]
_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  0.2660  0.7500  0.5670  1.0
  Tl  Tl1  2  0.2964  0.7500  0.0727  1.0
  Ag  Ag2  2  0.2704  0.2500  0.3165  1.0
  I  I3  4  0.0076  0.0071  0.7565  1.0
  I  I4  2  0.4181  0.2500  0.5996  1.0
  I  I5  2  0.4235  0.2500  0.1102  1.0
]