data_Si2RhAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.14
_cell_length_b   3.14
_cell_length_c   6.1
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2RhAu
_chemical_formula_sum   'Si2 Rh1 Au1'
_cell_volume   60.24
_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
  Si  Si2  1  0.57  0.57  0.35  1.0
  Si  Si3  1  0.57  0.57  0.75  1.0
  Rh  Rh1  1  0.0  0.0  0.0  1.0
  Au  Au0  1  0.0  0.0  0.05  1.0

data_Si2RhAu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.44
_cell_length_b   4.44
_cell_length_c   6.1
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Si2RhAu
_chemical_formula_sum   'Si4 Rh2 Au2'
_cell_volume   120.48
_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
  Si  Si0  2  0.07  0.5  0.35  1.0
  Si  Si1  2  0.07  0.5  0.75  1.0
  Rh  Rh2  2  0.0  0.0  0.0  1.0
  Au  Au3  2  0.0  0.0  0.05  1.0

Si Si Rh Au
RhAuSi2 crystallizes in the monoclinic Cm space group. Rh(1) is bonded in a single-bond geometry to one Au(1) and four equivalent Si(2) atoms. The Rh(1)-Au(1) bond length is 0.31 Å. There are a spread of Rh(1)-Si(2) bond distances ranging from 2.43-2.95 Å. Au(1) is bonded in a single-bond geometry to one Rh(1) and four equivalent Si(1) atoms. There are a spread of Au(1)-Si(1) bond distances ranging from 2.63-3.12 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 5-coordinate geometry to four equivalent Au(1) and one Si(2) atom. The Si(1)-Si(2) bond length is 2.47 Å. In the second Si site, Si(2) is bonded in a 5-coordinate geometry to four equivalent Rh(1) and one Si(1) atom.