data_[Rb4Sn8Pb12]
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 [Cmcm]
_cell_length_a [12.6128]
_cell_length_b [11.4132]
_cell_length_c [6.3315]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbSn2Pb3]
_chemical_formula_sum '[Rb4 Sn8 Pb12]'
_cell_volume [911.4352]
_cell_formula_units_Z [4]
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  4  0.0000  0.3249  0.2500  1.0
  Sn  Sn1  8  0.2392  0.0000  0.0000  1.0
  Pb  Pb2  8  0.1939  0.2570  0.7500  1.0
  Pb  Pb3  4  0.0000  0.0562  0.7500  1.0
]