data_[Rb8Sn8Pb32]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Fmmm]
_cell_length_a [7.7571]
_cell_length_b [10.2565]
_cell_length_c [21.8732]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [69]
_chemical_formula_structural [RbSnPb4]
_chemical_formula_sum '[Rb8 Sn8 Pb32]'
_cell_volume [1740.2363]
_cell_formula_units_Z [8]
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
[
  Rb  Rb0  8  0.0000  0.2269  0.0000  1.0
  Sn  Sn1  8  0.2500  0.0000  0.2500  1.0
  Pb  Pb2  16  0.0000  0.2277  0.1769  1.0
  Pb  Pb3  16  0.2095  0.0000  0.3871  1.0
]