data_[Rb2Na2Tl2I6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.7370]
_cell_length_b [5.2728]
_cell_length_c [11.3766]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.3689]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbNaTlI3]
_chemical_formula_sum '[Rb2 Na2 Tl2 I6]'
_cell_volume [554.3258]
_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  0.2124  0.2500  0.2387  1.0
  Na  Na1  2  0.1482  0.2500  0.6269  1.0
  Tl  Tl2  2  0.3292  0.7500  0.8837  1.0
  I  I3  2  0.0895  0.2500  0.8807  1.0
  I  I4  2  0.1998  0.7500  0.5051  1.0
  I  I5  2  0.4712  0.7500  0.1969  1.0
]