data_TcMoRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.32
_cell_length_b   3.32
_cell_length_c   5.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcMoRh2
_chemical_formula_sum   'Tc1 Mo1 Rh2'
_cell_volume   59.94
_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  0.0  0.0  0.72  1.0
  Mo  Mo0  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.66  0.66  0.36  1.0
  Rh  Rh2  1  0.66  0.66  0.08  1.0

data_TcMoRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.69
_cell_length_b   4.69
_cell_length_c   5.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TcMoRh2
_chemical_formula_sum   'Tc2 Mo2 Rh4'
_cell_volume   119.87
_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
  Tc  Tc0  2  0.0  0.0  0.72  1.0
  Mo  Mo1  2  0.0  0.0  0.0  1.0
  Rh  Rh2  2  0.16  0.5  0.08  1.0
  Rh  Rh3  2  0.16  0.5  0.36  1.0

Tc Mo Rh Rh
MoTcRh2 crystallizes in the monoclinic Cm space group. Mo(1) is bonded in a distorted water-like geometry to one Tc(1) and three equivalent Rh(2) atoms. The Mo(1)-Tc(1) bond length is 1.52 Å. There is one shorter (1.66 Å) and two longer (2.50 Å) Mo(1)-Rh(2) bond lengths. Tc(1) is bonded in a distorted single-bond geometry to one Mo(1) and one Rh(1) atom. The Tc(1)-Rh(1) bond length is 2.53 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 2-coordinate geometry to one Tc(1) and one Rh(2) atom. The Rh(1)-Rh(2) bond length is 1.53 Å. In the second Rh site, Rh(2) is bonded in a 4-coordinate geometry to three equivalent Mo(1) and one Rh(1) atom.