data_TlSnPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.48
_cell_length_b   5.06
_cell_length_c   7.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlSnPb2
_chemical_formula_sum   'Tl1 Sn1 Pb2'
_cell_volume   123.23
_cell_formula_units_Z   1
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  Tl3  1  0.74  0.53  0.23  1.0
  Sn  Sn2  1  0.0  0.0  0.48  1.0
  Pb  Pb0  1  0.0  0.0  0.01  1.0
  Pb  Pb1  1  0.74  0.53  0.79  1.0

data_TlSnPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.48
_cell_length_b   5.06
_cell_length_c   7.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlSnPb2
_chemical_formula_sum   'Tl1 Sn1 Pb2'
_cell_volume   123.23
_cell_formula_units_Z   1
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  1  0.74  0.53  0.23  1.0
  Sn  Sn1  1  0.0  0.0  0.48  1.0
  Pb  Pb2  1  0.0  0.0  0.01  1.0
  Pb  Pb3  1  0.74  0.53  0.79  1.0

Tl Sn Pb Pb
TlPb2Sn crystallizes in the triclinic P1 space group. Tl(1) is bonded in a 5-coordinate geometry to one Pb(2), two equivalent Pb(1), and two equivalent Sn(1) atoms. The Tl(1)-Pb(2) bond length is 3.08 Å. There is one shorter (2.97 Å) and one longer (3.22 Å) Tl(1)-Pb(1) bond length. There is one shorter (3.09 Å) and one longer (3.32 Å) Tl(1)-Sn(1) bond length. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 7-coordinate geometry to two equivalent Tl(1), two equivalent Pb(1), two equivalent Pb(2), and one Sn(1) atom. Both Pb(1)-Pb(1) bond lengths are 3.48 Å. There is one shorter (2.99 Å) and one longer (3.23 Å) Pb(1)-Pb(2) bond length. The Pb(1)-Sn(1) bond length is 3.28 Å. In the second Pb site, Pb(2) is bonded in a 7-coordinate geometry to one Tl(1), two equivalent Pb(1), two equivalent Pb(2), and two equivalent Sn(1) atoms. Both Pb(2)-Pb(2) bond lengths are 3.48 Å. There is one shorter (3.35 Å) and one longer (3.57 Å) Pb(2)-Sn(1) bond length. Sn(1) is bonded in a 4-coordinate geometry to two equivalent Tl(1), one Pb(1), and two equivalent Pb(2) atoms.