data_Re2RhAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.96
_cell_length_b   4.96
_cell_length_c   4.96
_cell_angle_alpha   134.4
_cell_angle_beta   134.4
_cell_angle_gamma   66.46
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Re2RhAu
_chemical_formula_sum   'Re2 Rh1 Au1'
_cell_volume   61.23
_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
  Re  Re1  1  0.0  0.92  0.07  1.0
  Re  Re2  1  0.92  0.0  0.07  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0
  Au  Au0  1  0.0  0.0  0.15  1.0

data_Re2RhAu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.43
_cell_length_b   5.43
_cell_length_c   4.96
_cell_angle_alpha   90.0
_cell_angle_beta   123.23
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Re2RhAu
_chemical_formula_sum   'Re4 Rh2 Au2'
_cell_volume   122.46
_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
  Re  Re0  4  0.39  0.46  0.85  1.0
  Rh  Rh1  2  0.0  0.0  0.0  1.0
  Au  Au2  2  0.35  0.5  0.85  1.0

Re Re Rh Au
Re Re Rh Au 0 3 o + o 0 2 o + o 1 3 + o o 1 2 + o o 2 3 o o o 
Re2RhAu crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Re2RhAu clusters. Re(1) is bonded in a single-bond geometry to one Rh(1) and one Au(1) atom. The Re(1)-Rh(1) bond length is 0.70 Å. The Re(1)-Au(1) bond length is 0.29 Å. Rh(1) is bonded in a 2-coordinate geometry to two equivalent Re(1) atoms. Au(1) is bonded in an L-shaped geometry to two equivalent Re(1) atoms.