data_[K8Na24Tl8]
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 [C2/c]
_cell_length_a [18.2443]
_cell_length_b [11.5676]
_cell_length_c [7.7078]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.6315]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KNa3Tl]
_chemical_formula_sum '[K8 Na24 Tl8]'
_cell_volume [1593.2691]
_cell_formula_units_Z [8]
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  0.0312  0.7500  1.0
  K  K1  4  0.0000  0.3624  0.2500  1.0
  Na  Na2  8  0.1772  0.4991  0.5969  1.0
  Na  Na3  8  0.1779  0.1644  0.5793  1.0
  Na  Na4  8  0.1910  0.1620  0.1019  1.0
  Tl  Tl5  8  0.0854  0.3221  0.8094  1.0
]