data_[Tl6Pb15]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.5986]
_cell_length_b [5.5986]
_cell_length_c [24.7536]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Tl2Pb5]
_chemical_formula_sum '[Tl6 Pb15]'
_cell_volume [671.9473]
_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  6  0.0000  0.0000  0.3579  1.0
  Pb  Pb1  6  0.0000  0.0000  0.0744  1.0
  Pb  Pb2  6  0.0000  0.0000  0.2141  1.0
  Pb  Pb3  3  -0.0000  -0.0000  0.5000  1.0
]