data_CdSiPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.56
_cell_length_b   6.56
_cell_length_c   6.56
_cell_angle_alpha   149.53
_cell_angle_beta   149.53
_cell_angle_gamma   43.63
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CdSiPb
_chemical_formula_sum   'Cd1 Si1 Pb1'
_cell_volume   72.49
_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
  Cd  Cd0  1  0.0  0.0  0.28  1.0
  Si  Si2  1  0.0  0.0  0.99  1.0
  Pb  Pb1  1  0.0  0.0  0.92  1.0

data_CdSiPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.88
_cell_length_b   4.88
_cell_length_c   6.56
_cell_angle_alpha   90.0
_cell_angle_beta   111.81
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CdSiPb
_chemical_formula_sum   'Cd2 Si2 Pb2'
_cell_volume   144.97
_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
  Cd  Cd0  2  0.0  0.0  0.72  1.0
  Si  Si1  2  0.0  0.0  0.01  1.0
  Pb  Pb2  2  0.0  0.0  0.08  1.0

Cd Si Pb
Cd Si Pb 0 1 o o - 1 2 o o o 
CdPbSi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CdPbSi clusters. Cd(1) is bonded in a single-bond geometry to one Si(1) atom. The Cd(1)-Si(1) bond length is 1.87 Å. Pb(1) is bonded in a single-bond geometry to one Si(1) atom. The Pb(1)-Si(1) bond length is 0.46 Å. Si(1) is bonded in a distorted single-bond geometry to one Cd(1) and one Pb(1) atom.