data_[Tl4Ag4Te8Pb4Se4]
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
  Te  2.1000  1.4000  1.2933
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.3118]
_cell_length_b [13.6732]
_cell_length_c [12.0237]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [TlAgTe2PbSe]
_chemical_formula_sum '[Tl4 Ag4 Te8 Pb4 Se4]'
_cell_volume [708.8686]
_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  0.0000  0.2073  0.2500  1
  Ag  Ag1  4  0.0000  0.0877  0.7500  1
  Te  Te2  8  0.0000  0.1662  0.5321  1
  Pb  Pb3  4  0.0000  0.5000  0.0000  1
  Se  Se4  4  0.0000  0.4664  0.7500  1
]