data_[Rb6Sn16Pb6]
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 [Immm]
_cell_length_a [5.3014]
_cell_length_b [11.6399]
_cell_length_c [15.4600]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Rb3Sn8Pb3]
_chemical_formula_sum '[Rb6 Sn16 Pb6]'
_cell_volume [954.0071]
_cell_formula_units_Z [2]
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  0.0000  0.1986  1
  Rb  Rb1  2  0.0000  0.0000  0.5000  1
  Sn  Sn2  8  0.0000  0.2745  0.3481  1
  Sn  Sn3  8  0.0000  0.3643  0.1594  1
  Pb  Pb4  4  0.0000  0.1957  0.0000  1
  Pb  Pb5  2  0.0000  0.5000  0.5000  1
]