data_[Rb2Na2Tl2Br6]
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
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.0384]
_cell_length_b [4.9898]
_cell_length_c [10.6487]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.5557]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbNaTlBr3]
_chemical_formula_sum '[Rb2 Na2 Tl2 Br6]'
_cell_volume [455.2871]
_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  0.2157  0.2500  0.2419  1.0
  Na  Na1  2  0.1543  0.2500  0.6258  1.0
  Tl  Tl2  2  0.3284  0.7500  0.8883  1.0
  Br  Br3  2  0.0896  0.2500  0.8774  1.0
  Br  Br4  2  0.1905  0.7500  0.5072  1.0
  Br  Br5  2  0.4760  0.7500  0.2045  1.0
]