data_[Sb18Pb24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sb  2.0500  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [13.8602]
_cell_length_b [13.8602]
_cell_length_c [7.9619]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Sb3Pb4]
_chemical_formula_sum '[Sb18 Pb24]'
_cell_volume [1324.6039]
_cell_formula_units_Z [6]
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
[
  Sb  Sb0  18  0.0342  0.2020  0.7387  1
  Pb  Pb1  18  0.0373  0.4487  0.7991  1
  Pb  Pb2  3  0.0000  0.0000  0.0000  1
  Pb  Pb3  3  0.0000  0.0000  0.5000  1
]