data_[Rb4Tl12Te8]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.0252]
_cell_length_b [5.2331]
_cell_length_c [11.9019]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.0740]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbTl3Te2]
_chemical_formula_sum '[Rb4 Tl12 Te8]'
_cell_volume [975.5595]
_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  0.1331  0.0000  0.0426  1.0
  Tl  Tl1  4  0.0246  0.0000  0.3601  1.0
  Tl  Tl2  4  0.1040  0.5000  0.6324  1.0
  Tl  Tl3  4  0.2104  0.5000  0.4033  1.0
  Te  Te4  4  0.0266  0.5000  0.1979  1.0
  Te  Te5  4  0.2016  0.0000  0.7804  1.0
]