data_RhPb2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.34
_cell_length_b   3.34
_cell_length_c   8.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.39
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RhPb2Au
_chemical_formula_sum   'Rh1 Pb2 Au1'
_cell_volume   92.8
_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
  Rh  Rh3  1  0.0  0.0  0.99  1.0
  Pb  Pb1  1  0.0  0.0  0.47  1.0
  Pb  Pb2  1  0.33  0.0  0.63  1.0
  Au  Au0  1  0.33  0.0  0.37  1.0

data_RhPb2Au
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.34
_cell_length_b   3.34
_cell_length_c   8.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   RhPb2Au
_chemical_formula_sum   'Rh1 Pb2 Au1'
_cell_volume   92.82
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Rh  Rh0  1  0.0  0.0  0.99  1.0
  Pb  Pb1  1  0.0  0.0  0.47  1.0
  Pb  Pb2  1  0.33  0.0  0.63  1.0
  Au  Au3  1  0.33  0.0  0.37  1.0

Rh Pb Pb Au
RhAuPb2 crystallizes in the monoclinic Pm space group. Rh(1) is bonded to four equivalent Rh(1), one Au(1), and one Pb(2) atom to form a mixture of distorted corner and edge-sharing RhRh4PbAu octahedra. The corner-sharing octahedra are not tilted. All Rh(1)-Rh(1) bond lengths are 3.34 Å. The Rh(1)-Au(1) bond length is 3.37 Å. The Rh(1)-Pb(2) bond length is 3.20 Å. Au(1) is bonded in a distorted single-bond geometry to one Rh(1), one Pb(1), and one Pb(2) atom. The Au(1)-Pb(1) bond length is 1.40 Å. The Au(1)-Pb(2) bond length is 2.13 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted single-bond geometry to one Au(1) and one Pb(2) atom. The Pb(1)-Pb(2) bond length is 1.70 Å. In the second Pb site, Pb(2) is bonded in a 2-coordinate geometry to one Rh(1), one Au(1), and one Pb(1) atom.