data_Sc2RhAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.72
_cell_length_b   4.72
_cell_length_c   4.72
_cell_angle_alpha   120.98
_cell_angle_beta   120.98
_cell_angle_gamma   88.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sc2RhAu
_chemical_formula_sum   'Sc2 Rh1 Au1'
_cell_volume   73.23
_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
  Sc  Sc2  1  0.33  0.0  0.69  1.0
  Sc  Sc3  1  0.0  0.33  0.69  1.0
  Rh  Rh1  1  0.0  0.0  0.0  1.0
  Au  Au0  1  0.0  0.0  0.39  1.0

data_Sc2RhAu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.58
_cell_length_b   6.58
_cell_length_c   4.72
_cell_angle_alpha   90.0
_cell_angle_beta   134.15
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sc2RhAu
_chemical_formula_sum   'Sc4 Rh2 Au2'
_cell_volume   146.45
_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
  Sc  Sc0  4  0.34  0.34  0.37  1.0
  Rh  Rh1  2  0.0  0.0  0.0  1.0
  Au  Au2  2  0.0  0.0  0.39  1.0

Sc Sc Rh Au
Sc2RhAu crystallizes in the monoclinic Cm space group. Sc(1) is bonded in a single-bond geometry to two equivalent Rh(1) and one Au(1) atom. There is one shorter (2.60 Å) and one longer (2.74 Å) Sc(1)-Rh(1) bond length. The Sc(1)-Au(1) bond length is 1.47 Å. Rh(1) is bonded in a 5-coordinate geometry to four equivalent Sc(1) and one Au(1) atom. The Rh(1)-Au(1) bond length is 1.82 Å. Au(1) is bonded in a 3-coordinate geometry to two equivalent Sc(1) and one Rh(1) atom.