data_YAlPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.06
_cell_length_b   6.06
_cell_length_c   6.06
_cell_angle_alpha   138.3
_cell_angle_beta   134.27
_cell_angle_gamma   63.6
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YAlPb2
_chemical_formula_sum   'Y1 Al1 Pb2'
_cell_volume   104.66
_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
  Y  Y3  1  0.0  0.35  0.05  1.0
  Al  Al0  1  0.0  0.0  0.7  1.0
  Pb  Pb1  1  0.0  0.35  0.13  1.0
  Pb  Pb2  1  0.0  0.0  0.57  1.0

data_YAlPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.31
_cell_length_b   4.71
_cell_length_c   6.06
_cell_angle_alpha   112.86
_cell_angle_beta   110.85
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YAlPb2
_chemical_formula_sum   'Y1 Al1 Pb2'
_cell_volume   104.66
_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
  Y  Y0  1  0.65  0.7  0.7  1.0
  Al  Al1  1  0.0  0.7  0.7  1.0
  Pb  Pb2  1  0.0  0.57  0.57  1.0
  Pb  Pb3  1  0.65  0.78  0.78  1.0

Y Al Pb Pb
PbYAlPb crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one lambda2-alumanylidenelead molecule and one PbY cluster. In the PbY cluster, Y(1) is bonded in a single-bond geometry to one Pb(1) atom. The Y(1)-Pb(1) bond length is 0.50 Å. Pb(1) is bonded in a single-bond geometry to one Y(1) atom.