data_[K16Na4Tl2]
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/m]
_cell_length_a [23.0410]
_cell_length_b [6.5511]
_cell_length_c [9.2850]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0940]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K8Na2Tl]
_chemical_formula_sum '[K16 Na4 Tl2]'
_cell_volume [1316.2068]
_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  0.0190  0.0000  0.7863  1.0
  K  K1  4  0.0953  0.5000  0.4254  1.0
  K  K2  4  0.1517  0.5000  0.9406  1.0
  K  K3  4  0.1922  0.0000  0.2655  1.0
  Na  Na4  4  0.1857  0.0000  0.6994  1.0
  Tl  Tl5  2  0.0000  0.5000  0.0000  1.0
]