data_AlCoPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.17
_cell_length_b   5.42
_cell_length_c   5.42
_cell_angle_alpha   43.7
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlCoPb2
_chemical_formula_sum   'Al1 Co1 Pb2'
_cell_volume   84.59
_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
  Al  Al0  1  0.0  0.0  0.91  1.0
  Co  Co1  1  0.09  0.0  0.1  1.0
  Pb  Pb2  1  0.0  0.0  0.05  1.0
  Pb  Pb3  1  0.09  0.0  0.05  1.0

data_AlCoPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.03
_cell_length_b   4.17
_cell_length_c   5.42
_cell_angle_alpha   90.0
_cell_angle_beta   111.85
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlCoPb2
_chemical_formula_sum   'Al1 Co1 Pb2'
_cell_volume   84.59
_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
  Al  Al0  1  0.09  0.0  0.09  1.0
  Co  Co1  1  0.9  0.09  0.9  1.0
  Pb  Pb2  1  0.95  0.0  0.95  1.0
  Pb  Pb3  1  0.95  0.09  0.95  1.0

Al Co Pb Pb
Al Co Pb Pb 0 3 o o + 0 2 o o + 1 3 o o o 2 3 o o o 
CoAlPb2 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CoAlPb2 cluster. Co(1) is bonded in a single-bond geometry to one Pb(1) and one Pb(2) atom. The Co(1)-Pb(1) bond length is 0.47 Å. The Co(1)-Pb(2) bond length is 0.30 Å. Al(1) is bonded in a 2-coordinate geometry to one Pb(1) and one Pb(2) atom. The Al(1)-Pb(1) bond length is 0.76 Å. The Al(1)-Pb(2) bond length is 0.84 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 3-coordinate geometry to one Co(1), one Al(1), and one Pb(2) atom. The Pb(1)-Pb(2) bond length is 0.36 Å. In the second Pb site, Pb(2) is bonded in a distorted L-shaped geometry to one Co(1), one Al(1), and one Pb(1) atom.