data_[Rb2Tl8Sn4]
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 [Cmmm]
_cell_length_a [5.9269]
_cell_length_b [15.6490]
_cell_length_c [5.3600]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Rb(Tl2Sn)2]
_chemical_formula_sum '[Rb2 Tl8 Sn4]'
_cell_volume [497.1392]
_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  2  0.0000  0.0000  0.0000  1.0
  Tl  Tl1  4  0.0000  0.1810  0.5000  1.0
  Tl  Tl2  4  0.0000  0.3057  0.0000  1.0
  Sn  Sn3  4  0.0000  0.4040  0.5000  1.0
]