data_AlPb2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.2
_cell_length_b   5.2
_cell_length_c   5.2
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlPb2Au
_chemical_formula_sum   'Al1 Pb2 Au1'
_cell_volume   99.38
_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  0.0  1.0
  Pb  Pb2  1  0.68  0.68  0.68  1.0
  Pb  Pb3  1  0.84  0.84  0.84  1.0
  Au  Au1  1  0.51  0.51  0.51  1.0

data_AlPb2Au
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.2
_cell_length_b   5.2
_cell_length_c   12.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   AlPb2Au
_chemical_formula_sum   'Al3 Pb6 Au3'
_cell_volume   298.14
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.0  1.0
  Pb  Pb1  3  0.0  0.0  0.16  1.0
  Pb  Pb2  3  0.0  0.0  0.32  1.0
  Au  Au3  3  0.0  0.0  0.49  1.0

Al Pb Pb Au
AuAlPb2 crystallizes in the trigonal R3m space group. Au(1) is bonded to one Pb(1) and three equivalent Pb(2) atoms to form distorted AuPb4 trigonal pyramids that share corners with three equivalent Pb(1)Al3PbAu trigonal bipyramids, corners with six equivalent Au(1)Pb4 trigonal pyramids, and edges with three equivalent Al(1)Pb4 trigonal pyramids. The Au(1)-Pb(1) bond length is 2.06 Å. All Au(1)-Pb(2) bond lengths are 3.00 Å. Al(1) is bonded to one Pb(2) and three equivalent Pb(1) atoms to form distorted AlPb4 trigonal pyramids that share  a cornercorner with one Pb(1)Al3PbAu trigonal bipyramid, corners with six equivalent Al(1)Pb4 trigonal pyramids, and edges with three equivalent Au(1)Pb4 trigonal pyramids. The Al(1)-Pb(2) bond length is 2.06 Å. All Al(1)-Pb(1) bond lengths are 3.00 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one Au(1), three equivalent Al(1), and one Pb(2) atom to form PbAl3PbAu trigonal bipyramids that share corners with six equivalent Pb(1)Al3PbAu trigonal bipyramids,  a cornercorner with one Al(1)Pb4 trigonal pyramid, and corners with three equivalent Au(1)Pb4 trigonal pyramids. The Pb(1)-Pb(2) bond length is 2.06 Å. In the second Pb site, Pb(2) is bonded in a distorted single-bond geometry to three equivalent Au(1), one Al(1), and one Pb(1) atom.