data_TaBRh4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.04
_cell_length_b   5.04
_cell_length_c   5.04
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaBRh4
_chemical_formula_sum   'Ta1 B1 Rh4'
_cell_volume   90.74
_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  Ta5  1  0.35  0.35  0.35  1.0
  B  B0  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.46  0.46  0.67  1.0
  Rh  Rh2  1  0.46  0.67  0.46  1.0
  Rh  Rh3  1  0.67  0.46  0.46  1.0
  Rh  Rh4  1  0.67  0.67  0.67  1.0

data_TaBRh4
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.04
_cell_length_b   5.04
_cell_length_c   12.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   TaBRh4
_chemical_formula_sum   'Ta3 B3 Rh12'
_cell_volume   272.21
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.65  1.0
  B  B1  3  0.0  0.0  1.0  1.0
  Rh  Rh2  9  0.07  0.14  0.47  1.0
  Rh  Rh3  3  0.0  0.0  0.33  1.0

Ta B Rh Rh Rh Rh
TaRh4B crystallizes in the trigonal R3m space group. Ta(1) is bonded to three equivalent Rh(2), six equivalent Rh(1), and three equivalent B(1) atoms to form a mixture of distorted corner and edge-sharing TaB3Rh9 cuboctahedra. All Ta(1)-Rh(2) bond lengths are 2.92 Å. There are three shorter (2.33 Å) and three longer (2.97 Å) Ta(1)-Rh(1) bond lengths. All Ta(1)-B(1) bond lengths are 2.92 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(2) is bonded in a 9-coordinate geometry to three equivalent Ta(1), three equivalent Rh(1), and three equivalent B(1) atoms. All Rh(2)-Rh(1) bond lengths are 1.82 Å. All Rh(2)-B(1) bond lengths are 2.91 Å. In the second Rh site, Rh(1) is bonded in a 5-coordinate geometry to two equivalent Ta(1), one Rh(2), and two equivalent Rh(1) atoms. Both Rh(1)-Rh(1) bond lengths are 1.05 Å. B(1) is bonded in a hexagonal planar geometry to three equivalent Ta(1) and three equivalent Rh(2) atoms.