data_[K6Tl6Sn16]
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
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.9322]
_cell_length_b [11.9560]
_cell_length_c [15.9148]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [K3Tl3Sn8]
_chemical_formula_sum '[K6 Tl6 Sn16]'
_cell_volume [938.4937]
_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  0.0000  0.1920  1.0
  K  K1  2  0.0000  0.0000  0.5000  1.0
  Tl  Tl2  4  0.0000  0.2015  0.0000  1.0
  Tl  Tl3  2  0.0000  0.5000  0.5000  1.0
  Sn  Sn4  8  0.0000  0.2775  0.3447  1.0
  Sn  Sn5  8  0.0000  0.3704  0.1606  1.0
]