data_TaAl2Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.95
_cell_length_b   2.95
_cell_length_c   6.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaAl2Rh
_chemical_formula_sum   'Ta1 Al2 Rh1'
_cell_volume   60.61
_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  0.49  1.0
  Al  Al0  1  0.47  0.47  0.47  1.0
  Al  Al1  1  0.47  0.47  0.52  1.0
  Rh  Rh2  1  0.0  0.0  0.0  1.0

data_TaAl2Rh
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   6.99
_cell_length_b   4.17
_cell_length_c   4.17
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   TaAl2Rh
_chemical_formula_sum   'Ta2 Al4 Rh2'
_cell_volume   121.22
_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, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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
  Al  Al1  4  0.02  0.0  0.47  1.0
  Rh  Rh2  2  0.5  0.0  0.0  1.0

Ta Al Al Rh
Ta Al Al Rh 0 1 - - o 0 1 - o o 0 1 o - o 0 1 o o o 0 2 - - o 0 2 - o o 0 2 o - o 0 2 o o o 0 3 o o + 0 3 o o o 1 2 o o o 3 3 + o o 3 3 o + o 
TaRhAl2 crystallizes in the monoclinic Cm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a distorted q4 geometry to two equivalent Rh(1), four equivalent Al(1), and four equivalent Al(2) atoms. There is one shorter (3.45 Å) and one longer (3.54 Å) Ta(1)-Rh(1) bond length. There are a spread of Ta(1)-Al(1) bond distances ranging from 1.98-2.20 Å. There are a spread of Ta(1)-Al(2) bond distances ranging from 1.98-2.20 Å. In the second Ta site, Ta(1) is bonded in a distorted q4 geometry to two equivalent Rh(1), four equivalent Al(1), and four equivalent Al(2) atoms. There is one shorter (3.45 Å) and one longer (3.54 Å) Ta(1)-Rh(1) bond length. There are a spread of Ta(1)-Al(1) bond distances ranging from 1.98-2.20 Å. There are a spread of Ta(1)-Al(2) bond distances ranging from 1.98-2.20 Å. Rh(1) is bonded to two equivalent Ta(1) and four equivalent Rh(1) atoms to form a mixture of corner and edge-sharing RhTa2Rh4 octahedra. The corner-sharing octahedra are not tilted. All Rh(1)-Rh(1) bond lengths are 2.95 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a single-bond geometry to four Ta(1,1) and one Al(2) atom. The Al(1)-Al(2) bond length is 0.34 Å. In the second Al site, Al(2) is bonded in a single-bond geometry to four Ta(1,1) and one Al(1) atom.