data_[K2Tl2Sn2Te6]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.9478]
_cell_length_b [5.1715]
_cell_length_c [10.4057]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.9764]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KTlSnTe3]
_chemical_formula_sum '[K2 Tl2 Sn2 Te6]'
_cell_volume [460.5239]
_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  0.2570  0.2500  0.2591  1.0
  Tl  Tl1  2  0.3249  0.7500  0.9083  1.0
  Sn  Sn2  2  0.1342  0.2500  0.6524  1.0
  Te  Te3  2  0.0453  0.2500  0.8909  1.0
  Te  Te4  2  0.2026  0.7500  0.5410  1.0
  Te  Te5  2  0.4840  0.2500  0.7817  1.0
]