data_NaRhAu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.73
_cell_length_b   4.73
_cell_length_c   4.73
_cell_angle_alpha   123.72
_cell_angle_beta   123.72
_cell_angle_gamma   83.67
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaRhAu2
_chemical_formula_sum   'Na1 Rh1 Au2'
_cell_volume   70.04
_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
  Na  Na2  1  0.0  0.0  0.0  1.0
  Rh  Rh3  1  0.0  0.0  0.52  1.0
  Au  Au0  1  0.0  0.23  0.76  1.0
  Au  Au1  1  0.23  0.0  0.76  1.0

data_NaRhAu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.31
_cell_length_b   6.31
_cell_length_c   4.73
_cell_angle_alpha   90.0
_cell_angle_beta   131.84
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaRhAu2
_chemical_formula_sum   'Na2 Rh2 Au4'
_cell_volume   140.07
_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
  Na  Na0  2  0.0  0.0  0.0  1.0
  Rh  Rh1  2  0.0  0.0  0.52  1.0
  Au  Au2  4  0.39  0.39  0.53  1.0

Na Rh Au Au
NaRhAu2 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 5-coordinate geometry to one Rh(1) and four equivalent Au(1) atoms. The Na(1)-Rh(1) bond length is 2.47 Å. There are two shorter (1.95 Å) and two longer (3.16 Å) Na(1)-Au(1) bond lengths. Rh(1) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent Au(1) atoms. Both Rh(1)-Au(1) bond lengths are 1.05 Å. Au(1) is bonded in a 2-coordinate geometry to two equivalent Na(1) and one Rh(1) atom.