data_[Tl4Cu4Ag4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.8821]
_cell_length_b [4.3489]
_cell_length_c [11.3745]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.1464]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TlCuAgTe2]
_chemical_formula_sum '[Tl4 Cu4 Ag4 Te8]'
_cell_volume [561.5067]
_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
[
  Tl  Tl0  4  0.1682  0.0000  0.6318  1
  Cu  Cu1  4  0.0269  0.0000  0.1947  1
  Ag  Ag2  4  0.1401  0.5000  0.9231  1
  Te  Te3  4  0.0772  0.5000  0.3483  1
  Te  Te4  4  0.1586  0.0000  0.0922  1
]