data_[Tl4Sn2Pb2]
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 [P2_1/m]
_cell_length_a [4.7107]
_cell_length_b [4.7174]
_cell_length_c [11.5351]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.9235]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Tl2SnPb]
_chemical_formula_sum '[Tl4 Sn2 Pb2]'
_cell_volume [250.7997]
_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  0.0558  0.7500  0.1292  1
  Tl  Tl1  2  0.4407  0.7500  0.8674  1
  Sn  Sn2  2  0.3391  0.2500  0.6569  1
  Pb  Pb3  2  0.1793  0.2500  0.3778  1
]