data_[Tl2Sn2Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.7641]
_cell_length_b [5.0856]
_cell_length_c [7.9298]
_cell_angle_alpha [90.7091]
_cell_angle_beta [106.0555]
_cell_angle_gamma [90.1171]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [TlSnPb]
_chemical_formula_sum '[Tl2 Sn2 Pb2]'
_cell_volume [184.6162]
_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  2  0.2477  0.2507  0.4928  1.0
  Sn  Sn1  2  0.4235  0.7597  0.8477  1.0
  Pb  Pb2  2  0.0812  0.7451  0.1629  1.0
]