data_[K4Tl10Pb8]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.6558]
_cell_length_b [7.1398]
_cell_length_c [10.4537]
_cell_angle_alpha [90.0000]
_cell_angle_beta [126.5921]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Tl5Pb4]
_chemical_formula_sum '[K4 Tl10 Pb8]'
_cell_volume [758.4130]
_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  0.0709  0.0000  0.7630  1
  Tl  Tl1  8  0.1625  0.2219  0.1663  1
  Tl  Tl2  2  0.0000  0.5000  0.5000  1
  Pb  Pb3  4  0.0768  0.5000  0.8576  1
  Pb  Pb4  4  0.2310  0.5000  0.4568  1
]