data_[Rb4Tl20Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pbam]
_cell_length_a [11.7679]
_cell_length_b [13.0728]
_cell_length_c [7.2074]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [55]
_chemical_formula_structural [Rb2Tl10Pb]
_chemical_formula_sum '[Rb4 Tl20 Pb2]'
_cell_volume [1108.7851]
_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  0.1329  0.6170  0.5000  1
  Tl  Tl1  8  0.0840  0.1885  0.2652  1
  Tl  Tl2  4  0.0375  0.3809  0.0000  1
  Tl  Tl3  4  0.1791  0.8010  0.0000  1
  Tl  Tl4  4  0.2336  0.5530  0.0000  1
  Pb  Pb5  2  0.0000  0.0000  0.0000  1
]