data_TaRh2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.21
_cell_length_b   9.21
_cell_length_c   9.21
_cell_angle_alpha   17.98
_cell_angle_beta   17.98
_cell_angle_gamma   17.98
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaRh2Au
_chemical_formula_sum   'Ta1 Rh2 Au1'
_cell_volume   65.08
_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
  Ta  Ta3  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.0  0.0  0.94  1.0
  Rh  Rh2  1  0.0  0.0  0.25  1.0
  Au  Au0  1  0.0  0.0  0.6  1.0

data_TaRh2Au
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.99
_cell_length_b   2.88
_cell_length_c   9.21
_cell_angle_alpha   90.0
_cell_angle_beta   100.39
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TaRh2Au
_chemical_formula_sum   'Ta2 Rh4 Au2'
_cell_volume   130.16
_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
  Ta  Ta0  2  0.0  0.0  0.0  1.0
  Rh  Rh1  2  0.0  0.0  0.06  1.0
  Rh  Rh2  2  0.0  0.0  0.75  1.0
  Au  Au3  2  0.0  0.0  0.4  1.0

Ta Rh Rh Au
TaRh2Au crystallizes in the monoclinic Cm space group. Ta(1) is bonded in a single-bond geometry to one Rh(1) and one Rh(2) atom. The Ta(1)-Rh(1) bond length is 0.55 Å. The Ta(1)-Rh(2) bond length is 2.30 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a single-bond geometry to one Ta(1) and one Au(1) atom. The Rh(1)-Au(1) bond length is 3.18 Å. In the second Rh site, Rh(2) is bonded in a distorted single-bond geometry to one Ta(1) and one Au(1) atom. The Rh(2)-Au(1) bond length is 3.18 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded to one Rh(1); one Rh(2); and six Au(1,1) atoms to form a mixture of edge and corner-sharing AuRh2Au6 hexagonal bipyramids. All Au(1)-Au(1,1) bond lengths are 2.88 Å. In the second Au site, Au(1) is bonded to one Rh(1); one Rh(2); and six Au(1,1) atoms to form a mixture of edge and corner-sharing AuRh2Au6 hexagonal bipyramids. The Au(1)-Rh(1) bond length is 3.18 Å. The Au(1)-Rh(2) bond length is 3.18 Å. Both Au(1)-Au(1) bond lengths are 2.88 Å.