data_Tc2Rh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.22
_cell_length_b   4.22
_cell_length_c   5.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2Rh3
_chemical_formula_sum   'Tc2 Rh3'
_cell_volume   80.93
_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
  Tc  Tc3  1  0.11  0.22  0.73  1.0
  Tc  Tc4  1  0.0  0.44  0.52  1.0
  Rh  Rh0  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.11  0.22  0.3  1.0
  Rh  Rh2  1  0.0  0.44  0.95  1.0

data_Tc2Rh3
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.22
_cell_length_b   4.22
_cell_length_c   5.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2Rh3
_chemical_formula_sum   'Tc2 Rh3'
_cell_volume   80.93
_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
  Tc  Tc0  1  -0.0  0.44  0.52  1.0
  Tc  Tc1  1  0.11  0.22  0.73  1.0
  Rh  Rh2  1  -0.0  0.44  0.95  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0
  Rh  Rh4  1  0.11  0.22  0.3  1.0

Tc Tc Rh Rh Rh
Tc Tc Rh Rh Rh 0 2 o o + 0 1 o o o 0 4 o o o 1 3 o o o 2 4 o o - 2 3 o o o 
Tc2Rh3 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Tc2Rh3 cluster. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 4-coordinate geometry to one Tc(2), one Rh(1), one Rh(2), and one Rh(3) atom. The Tc(1)-Tc(2) bond length is 1.63 Å. The Tc(1)-Rh(1) bond length is 1.63 Å. The Tc(1)-Rh(2) bond length is 2.27 Å. The Tc(1)-Rh(3) bond length is 1.70 Å. In the second Tc site, Tc(2) is bonded in a 1-coordinate geometry to one Tc(1) and one Rh(2) atom. The Tc(2)-Rh(2) bond length is 1.70 Å. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a distorted single-bond geometry to one Tc(1) atom. In the second Rh site, Rh(2) is bonded in a distorted single-bond geometry to one Tc(1) and one Tc(2) atom. In the third Rh site, Rh(3) is bonded in a distorted single-bond geometry to one Tc(1) atom.