data_Ta2CoRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.12
_cell_length_b   3.12
_cell_length_c   6.29
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2CoRh
_chemical_formula_sum   'Ta2 Co1 Rh1'
_cell_volume   61.37
_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  Ta2  1  0.56  0.56  0.82  1.0
  Ta  Ta3  1  0.56  0.56  0.47  1.0
  Co  Co0  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.0  0.0  0.14  1.0

data_Ta2CoRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.42
_cell_length_b   4.42
_cell_length_c   6.29
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ta2CoRh
_chemical_formula_sum   'Ta4 Co2 Rh2'
_cell_volume   122.74
_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  0.06  0.5  0.47  1.0
  Ta  Ta1  2  0.06  0.5  0.82  1.0
  Co  Co2  2  0.0  0.0  0.0  1.0
  Rh  Rh3  2  0.0  0.0  0.14  1.0

Ta Ta Co Rh
Ta2RhCo crystallizes in the monoclinic Cm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 5-coordinate geometry to one Ta(2) and four equivalent Co(1) atoms. The Ta(1)-Ta(2) bond length is 2.24 Å. There are a spread of Ta(1)-Co(1) bond distances ranging from 2.23-2.72 Å. In the second Ta site, Ta(2) is bonded in a 9-coordinate geometry to one Ta(1), four equivalent Ta(2), and four equivalent Rh(1) atoms. All Ta(2)-Ta(2) bond lengths are 3.12 Å. There are a spread of Ta(2)-Rh(1) bond distances ranging from 2.80-3.20 Å. Rh(1) is bonded in a single-bond geometry to four equivalent Ta(2) and one Co(1) atom. The Rh(1)-Co(1) bond length is 0.91 Å. Co(1) is bonded in a distorted single-bond geometry to four equivalent Ta(1) and one Rh(1) atom.