data_[Rb4Tl4Si4Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tl  1.6200  1.9000  1.3325
  Si  1.9000  1.1000  0.5400
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.4771]
_cell_length_b [7.4530]
_cell_length_c [10.6288]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.9520]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbTlSiTe3]
_chemical_formula_sum '[Rb4 Tl4 Si4 Te12]'
_cell_volume [939.9736]
_cell_formula_units_Z [4]
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  0.1976  0.0000  0.8349  1
  Tl  Tl1  4  0.1071  0.5000  0.3932  1
  Si  Si2  4  0.1181  0.0000  0.1893  1
  Te  Te3  4  0.0000  0.2573  0.0000  1
  Te  Te4  4  0.1133  0.0000  0.4200  1
  Te  Te5  4  0.1862  0.5000  0.7478  1
]