data_[Na3Tl24Pb18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [9.2711]
_cell_length_b [9.2711]
_cell_length_c [20.2101]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Na(Tl4Pb3)2]
_chemical_formula_sum '[Na3 Tl24 Pb18]'
_cell_volume [1504.4109]
_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
[
  Na  Na0  3  0.0000  0.0000  0.0000  1.0
  Tl  Tl1  18  0.0094  0.3100  0.1344  1.0
  Tl  Tl2  6  0.0000  0.0000  0.2317  1.0
  Pb  Pb3  18  0.0164  0.2327  0.6345  1.0
]