data_[K6Na8Tl2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [7.4382]
_cell_length_b [12.2394]
_cell_length_c [8.1942]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [K3Na4Tl]
_chemical_formula_sum '[K6 Na8 Tl2]'
_cell_volume [745.9881]
_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  4  0.0000  0.3072  0.3233  1.0
  K  K1  2  0.0000  0.0000  0.5070  1.0
  Na  Na2  4  0.0000  0.2597  0.8449  1.0
  Na  Na3  4  0.2371  0.0000  0.0258  1.0
  Tl  Tl4  2  0.0000  0.5000  0.6629  1.0
]