data_[K2Tl16Sb4]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.0066]
_cell_length_b [6.3394]
_cell_length_c [6.6564]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.0931]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K(Tl4Sb)2]
_chemical_formula_sum '[K2 Tl16 Sb4]'
_cell_volume [750.2853]
_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  0.0000  0.0000  0.0000  1.0
  Tl  Tl1  8  0.0889  0.2555  0.4853  1.0
  Tl  Tl2  4  0.1292  0.5000  0.0137  1.0
  Tl  Tl3  4  0.2405  0.0000  0.3238  1.0
  Sb  Sb4  4  0.1894  0.0000  0.8366  1.0
]