data_[Tl4Cd8Pb20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Cd  1.6900  1.5500  1.0900
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.2643]
_cell_length_b [8.2643]
_cell_length_c [14.2286]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [TlCd2Pb5]
_chemical_formula_sum '[Tl4 Cd8 Pb20]'
_cell_volume [971.7855]
_cell_formula_units_Z [4]
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
[
  Tl  Tl0  4  0.0000  0.0000  0.2500  1.0
  Cd  Cd1  8  0.1414  0.3586  0.5000  1.0
  Pb  Pb2  16  0.1502  0.3498  0.1571  1.0
  Pb  Pb3  4  0.0000  0.0000  0.0000  1.0
]