data_Sn2SbPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.88
_cell_length_b   4.88
_cell_length_c   4.88
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sn2SbPb
_chemical_formula_sum   'Sn2 Sb1 Pb1'
_cell_volume   116.07
_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  0.44  0.44  1.0
  Sn  Sn3  1  0.44  0.0  0.44  1.0
  Sb  Sb1  1  0.0  0.0  0.0  1.0
  Pb  Pb0  1  0.44  0.44  0.0  1.0

data_Sn2SbPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.9
_cell_length_b   6.9
_cell_length_c   4.88
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sn2SbPb
_chemical_formula_sum   'Sn4 Sb2 Pb2'
_cell_volume   232.13
_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  4  0.22  0.22  0.44  1.0
  Sb  Sb1  2  0.0  0.0  0.0  1.0
  Pb  Pb2  2  0.44  0.0  0.0  1.0

Sn Sn Sb Pb
PbSn2Sb crystallizes in the monoclinic Cm space group. Pb(1) is bonded in a 9-coordinate geometry to six equivalent Sn(1) and three equivalent Sb(1) atoms. There are a spread of Pb(1)-Sn(1) bond distances ranging from 3.03-3.48 Å. There is one shorter (3.03 Å) and two longer (3.47 Å) Pb(1)-Sb(1) bond lengths. Sn(1) is bonded in a 9-coordinate geometry to three equivalent Pb(1), three equivalent Sn(1), and three equivalent Sb(1) atoms. There is one shorter (3.03 Å) and two longer (3.47 Å) Sn(1)-Sn(1) bond lengths. There are a spread of Sn(1)-Sb(1) bond distances ranging from 3.03-3.48 Å. Sb(1) is bonded in a 9-coordinate geometry to three equivalent Pb(1) and six equivalent Sn(1) atoms.