data_[K4Tl2Br2]
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
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [20.0827]
_cell_length_b [3.9361]
_cell_length_c [4.2246]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.7251]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [K2TlBr]
_chemical_formula_sum '[K4 Tl2 Br2]'
_cell_volume [328.1078]
_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  0.2169  0.5000  0.2068  1
  K  K1  2  0.4293  0.5000  0.9515  1
  Tl  Tl2  2  0.0567  0.5000  0.5656  1
  Br  Br3  2  0.2970  0.0000  0.7761  1
]