data_[Rb12Tl20Pt8]
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
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [10.9587]
_cell_length_b [15.2710]
_cell_length_c [8.3849]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Rb3Tl5Pt2]
_chemical_formula_sum '[Rb12 Tl20 Pt8]'
_cell_volume [1403.2055]
_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  8  0.2461  0.1437  0.0000  1
  Rb  Rb1  4  0.0000  0.0000  0.2500  1
  Tl  Tl2  8  0.0000  0.2651  0.2500  1
  Tl  Tl3  8  0.1762  0.3968  0.0000  1
  Tl  Tl4  4  0.0000  0.5000  0.2500  1
  Pt  Pt5  8  0.0937  0.1704  0.5000  1
]