data_[Rb2Na2Tl2]
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-3m1]
_cell_length_a [5.3535]
_cell_length_b [5.3535]
_cell_length_c [11.5935]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [RbNaTl]
_chemical_formula_sum '[Rb2 Na2 Tl2]'
_cell_volume [287.7543]
_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  0.3333  0.6667  0.3338  1.0
  Na  Na1  2  0.0000  0.0000  0.1339  1.0
  Tl  Tl2  2  0.3333  0.6667  0.9504  1.0
]