data_AlRh2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.33
_cell_length_b   4.33
_cell_length_c   3.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlRh2Pb
_chemical_formula_sum   'Al1 Rh2 Pb1'
_cell_volume   66.09
_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
  Rh  Rh2  1  0.16  0.0  0.76  1.0
  Rh  Rh3  1  0.0  0.16  0.76  1.0
  Pb  Pb1  1  0.16  0.16  0.0  1.0

data_AlRh2Pb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.12
_cell_length_b   6.12
_cell_length_c   3.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlRh2Pb
_chemical_formula_sum   'Al2 Rh4 Pb2'
_cell_volume   132.18
_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
  Al  Al0  2  0.0  0.0  0.0  1.0
  Rh  Rh1  4  0.08  0.08  0.76  1.0
  Pb  Pb2  2  0.16  0.0  -0.0  1.0

Al Rh Rh Pb
Rh2AlPb is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Rh2AlPb clusters. Rh(1) is bonded in a 3-coordinate geometry to one Rh(1), one Al(1), and one Pb(1) atom. The Rh(1)-Rh(1) bond length is 1.00 Å. The Rh(1)-Al(1) bond length is 1.09 Å. The Rh(1)-Pb(1) bond length is 1.09 Å. Al(1) is bonded in a 3-coordinate geometry to two equivalent Rh(1) and one Pb(1) atom. The Al(1)-Pb(1) bond length is 1.00 Å. Pb(1) is bonded in a distorted single-bond geometry to two equivalent Rh(1) and one Al(1) atom.