data_[Rb4Tl40Sn8]
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
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Fmmm]
_cell_length_a [6.5185]
_cell_length_b [15.9460]
_cell_length_c [16.7188]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [69]
_chemical_formula_structural [Rb(Tl5Sn)2]
_chemical_formula_sum '[Rb4 Tl40 Sn8]'
_cell_volume [1737.8004]
_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  0.0000  0.0000  1.0
  Tl  Tl1  16  0.0000  0.1060  0.3890  1.0
  Tl  Tl2  16  0.0000  0.1756  0.1802  1.0
  Tl  Tl3  8  0.2500  0.2500  0.0000  1.0
  Sn  Sn4  8  0.2500  0.0000  0.2500  1.0
]