data_Mo2RhPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.28
_cell_length_b   5.28
_cell_length_c   5.28
_cell_angle_alpha   136.69
_cell_angle_beta   136.69
_cell_angle_gamma   62.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mo2RhPb
_chemical_formula_sum   'Mo2 Rh1 Pb1'
_cell_volume   68.27
_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
  Mo  Mo0  1  0.95  0.0  0.25  1.0
  Mo  Mo1  1  0.0  0.95  0.25  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  0.0  0.0  0.5  1.0

data_Mo2RhPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.51
_cell_length_b   5.51
_cell_length_c   5.28
_cell_angle_alpha   90.0
_cell_angle_beta   121.46
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Mo2RhPb
_chemical_formula_sum   'Mo4 Rh2 Pb2'
_cell_volume   136.55
_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
  Mo  Mo0  4  0.22  0.47  0.7  1.0
  Rh  Rh1  2  0.0  0.0  0.0  1.0
  Pb  Pb2  2  0.5  0.0  0.5  1.0

Mo Mo Rh Pb
Mo Mo Rh Pb 0 1 + - o 0 2 + o o 0 3 + o o 1 2 o + o 1 3 o + o 
Mo2RhPb crystallizes in the monoclinic Cm space group. Mo(1) is bonded in a distorted single-bond geometry to one Mo(1), one Rh(1), and two equivalent Pb(1) atoms. The Mo(1)-Mo(1) bond length is 0.29 Å. The Mo(1)-Rh(1) bond length is 1.54 Å. There is one shorter (1.14 Å) and one longer (3.44 Å) Mo(1)-Pb(1) bond length. Rh(1) is bonded in a 3-coordinate geometry to two equivalent Mo(1) and one Pb(1) atom. The Rh(1)-Pb(1) bond length is 2.63 Å. Pb(1) is bonded in a 5-coordinate geometry to four equivalent Mo(1) and one Rh(1) atom.