data_BiRhPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.56
_cell_length_b   4.56
_cell_length_c   4.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BiRhPb2
_chemical_formula_sum   'Bi1 Rh1 Pb2'
_cell_volume   101.9
_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
  Bi  Bi0  1  0.28  0.28  0.0  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.28  0.0  0.45  1.0
  Pb  Pb2  1  0.0  0.28  0.45  1.0

data_BiRhPb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.44
_cell_length_b   6.44
_cell_length_c   4.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BiRhPb2
_chemical_formula_sum   'Bi2 Rh2 Pb4'
_cell_volume   203.8
_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
  Bi  Bi0  2  0.28  0.0  0.0  1.0
  Rh  Rh1  2  0.0  0.0  0.0  1.0
  Pb  Pb2  4  0.14  0.14  0.45  1.0

Bi Rh Pb Pb
RhPb2Bi crystallizes in the monoclinic Cm space group. Rh(1) is bonded in a single-bond geometry to four equivalent Pb(1) and one Bi(1) atom. There are two shorter (2.56 Å) and two longer (2.97 Å) Rh(1)-Pb(1) bond lengths. The Rh(1)-Bi(1) bond length is 1.79 Å. Pb(1) is bonded in a 7-coordinate geometry to two equivalent Rh(1), three equivalent Pb(1), and two equivalent Bi(1) atoms. There is one shorter (1.79 Å) and two longer (3.52 Å) Pb(1)-Pb(1) bond lengths. There is one shorter (2.56 Å) and one longer (2.97 Å) Pb(1)-Bi(1) bond length. Bi(1) is bonded in a distorted single-bond geometry to one Rh(1) and four equivalent Pb(1) atoms.