data_[Rb4Ba2Tl4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  Tl  1.6200  1.9000  1.3325
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.9403]
_cell_length_b [5.4372]
_cell_length_c [8.5314]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.5426]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Ba(TlTe2)2]
_chemical_formula_sum '[Rb4 Ba2 Tl4 Te8]'
_cell_volume [797.7469]
_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  4  0.1308  0.0000  0.5708  1.0
  Ba  Ba1  2  0.0000  0.0000  0.0000  1.0
  Tl  Tl2  4  0.1733  0.5000  0.0226  1.0
  Te  Te3  4  0.0260  0.5000  0.7462  1.0
  Te  Te4  4  0.2066  0.0000  0.1934  1.0
]