data_[Tl36Te21Pb3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Te  2.1000  1.4000  1.2933
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [15.2607]
_cell_length_b [15.2607]
_cell_length_c [12.1033]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Tl12Te7Pb]
_chemical_formula_sum '[Tl36 Te21 Pb3]'
_cell_volume [2441.1029]
_cell_formula_units_Z [3]
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  18  0.0075  0.2538  0.0828  1
  Tl  Tl1  18  0.0252  0.1759  0.3370  1
  Te  Te2  18  0.0191  0.1827  0.8324  1
  Te  Te3  3  0.0000  0.0000  0.5000  1
  Pb  Pb4  3  0.0000  0.0000  0.0000  1
]