data_[Tl3Cu3Pb6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Cu  1.9000  1.3500  0.8200
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [4.2499]
_cell_length_b [4.2499]
_cell_length_c [22.3310]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [TlCuPb2]
_chemical_formula_sum '[Tl3 Cu3 Pb6]'
_cell_volume [349.2974]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.5017  1
  Cu  Cu1  3  0.0000  0.0000  0.6653  1
  Pb  Pb2  3  0.0000  0.0000  0.0570  1
  Pb  Pb3  3  0.0000  0.0000  0.2761  1
]