data_[Rb3Na2Tl4]
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
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.6645]
_cell_length_b [7.4139]
_cell_length_c [10.7056]
_cell_angle_alpha [72.8224]
_cell_angle_beta [89.5051]
_cell_angle_gamma [68.1785]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Rb3(NaTl2)2]
_chemical_formula_sum '[Rb3 Na2 Tl4]'
_cell_volume [396.1579]
_cell_formula_units_Z [1]
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  0.3831  0.2387  0.6310  1
  Rb  Rb1  1  0.0000  0.0000  0.0000  1
  Na  Na2  2  0.3092  0.3669  0.2339  1
  Tl  Tl3  2  0.1016  0.8228  0.6277  1
  Tl  Tl4  2  0.2582  0.4901  0.9152  1
]