data_[Tl4Ag4Sb2Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
  Sb  2.0500  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.8471]
_cell_length_b [4.3308]
_cell_length_c [8.3515]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.6725]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tl2Ag2SbTe4]
_chemical_formula_sum '[Tl4 Ag4 Sb2 Te8]'
_cell_volume [562.2535]
_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
[
  Tl  Tl0  4  0.1319  0.0000  0.5720  1.0
  Ag  Ag1  4  0.1903  0.5000  0.9830  1.0
  Sb  Sb2  2  0.0000  0.0000  0.0000  1.0
  Te  Te3  4  0.0133  0.5000  0.7488  1.0
  Te  Te4  4  0.1973  0.0000  0.2103  1.0
]