data_SnIrPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.94
_cell_length_b   6.94
_cell_length_c   6.94
_cell_angle_alpha   152.81
_cell_angle_beta   152.81
_cell_angle_gamma   38.84
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SnIrPb
_chemical_formula_sum   'Sn1 Ir1 Pb1'
_cell_volume   69.74
_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  0.25  1.0
  Ir  Ir0  1  0.0  0.0  0.13  1.0
  Pb  Pb1  1  0.0  0.0  0.71  1.0

data_SnIrPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.62
_cell_length_b   4.62
_cell_length_c   6.94
_cell_angle_alpha   90.0
_cell_angle_beta   109.42
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SnIrPb
_chemical_formula_sum   'Sn2 Ir2 Pb2'
_cell_volume   139.48
_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  0.25  0.0  0.25  1.0
  Ir  Ir1  2  0.13  0.0  0.13  1.0
  Pb  Pb2  2  0.21  0.5  0.71  1.0

Sn Ir Pb
IrPbSn crystallizes in the monoclinic Cm space group. Ir(1) is bonded in a single-bond geometry to one Pb(1) and one Sn(1) atom. The Ir(1)-Pb(1) bond length is 2.86 Å. The Ir(1)-Sn(1) bond length is 0.88 Å. Pb(1) is bonded in a distorted linear geometry to one Ir(1), four equivalent Pb(1), and one Sn(1) atom. All Pb(1)-Pb(1) bond lengths are 3.26 Å. The Pb(1)-Sn(1) bond length is 3.20 Å. Sn(1) is bonded in a single-bond geometry to one Ir(1) and one Pb(1) atom.