data_LaAl2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.29
_cell_length_b   10.29
_cell_length_c   10.29
_cell_angle_alpha   19.44
_cell_angle_beta   19.44
_cell_angle_gamma   19.44
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaAl2Pb
_chemical_formula_sum   'La1 Al2 Pb1'
_cell_volume   105.52
_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
  La  La2  1  0.0  0.0  0.0  1.0
  Al  Al0  1  0.0  0.0  0.83  1.0
  Al  Al1  1  0.0  0.0  0.44  1.0
  Pb  Pb3  1  0.0  0.0  0.14  1.0

data_LaAl2Pb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.02
_cell_length_b   3.47
_cell_length_c   10.29
_cell_angle_alpha   90.0
_cell_angle_beta   101.24
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaAl2Pb
_chemical_formula_sum   'La2 Al4 Pb2'
_cell_volume   211.05
_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
  La  La0  2  0.0  0.0  0.0  1.0
  Al  Al1  2  0.0  0.0  0.17  1.0
  Al  Al2  2  0.0  0.0  0.56  1.0
  Pb  Pb3  2  0.0  0.0  0.86  1.0

La Al Al Pb
LaAl2Pb is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two LaAl2Pb clusters. La(1) is bonded in a linear geometry to one Al(1) and one Pb(1) atom. The La(1)-Al(1) bond length is 1.73 Å. The La(1)-Pb(1) bond length is 1.41 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a single-bond geometry to one La(1) atom. In the second Al site, Al(2) is bonded in a single-bond geometry to one Pb(1) atom. The Al(2)-Pb(1) bond length is 3.15 Å. Pb(1) is bonded in a single-bond geometry to one La(1) and one Al(2) atom.