data_Sn2BiPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.54
_cell_length_b   11.54
_cell_length_c   11.54
_cell_angle_alpha   17.33
_cell_angle_beta   17.33
_cell_angle_gamma   17.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sn2BiPb
_chemical_formula_sum   'Sn2 Bi1 Pb1'
_cell_volume   119.05
_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
  Sn  Sn2  1  0.0  0.0  0.53  1.0
  Sn  Sn3  1  0.0  0.0  0.58  1.0
  Bi  Bi0  1  0.0  0.0  0.05  1.0
  Pb  Pb1  1  0.0  0.0  0.0  1.0

data_Sn2BiPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.02
_cell_length_b   3.48
_cell_length_c   11.54
_cell_angle_alpha   90.0
_cell_angle_beta   100.02
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sn2BiPb
_chemical_formula_sum   'Sn4 Bi2 Pb2'
_cell_volume   238.1
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Sn  Sn0  2  0.0  0.0  0.42  1.0
  Sn  Sn1  2  0.0  0.0  0.47  1.0
  Bi  Bi2  2  0.0  0.0  0.95  1.0
  Pb  Pb3  2  0.0  0.0  0.0  1.0

Sn Sn Bi Pb
(Sn)2Bi(Pb) is alpha oxygen-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two distannene molecules and two lambda2-bismuthanylidenelead molecules.