data_[Rb8Tl8]
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
]
_symmetry_space_group_name_H-M [Pbcm]
_cell_length_a [20.1781]
_cell_length_b [12.0542]
_cell_length_c [8.0308]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [57]
_chemical_formula_structural [RbTl]
_chemical_formula_sum '[Rb8 Tl8]'
_cell_volume [1953.3442]
_cell_formula_units_Z [8]
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  0.3717  0.6505  0.2500  1
  Rb  Rb1  4  0.3919  0.2500  0.0000  1
  Tl  Tl2  4  0.3878  0.5346  0.7500  1
  Tl  Tl3  4  0.5000  0.0000  0.0000  1
]