data_TcMoRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.84
_cell_length_b   3.84
_cell_length_c   3.94
_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   58.25
_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  0.92  0.92  0.0  1.0
  Mo  Mo0  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.0  0.92  0.97  1.0
  Rh  Rh2  1  0.92  0.0  0.97  1.0

data_TcMoRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.44
_cell_length_b   5.44
_cell_length_c   3.94
_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   116.5
_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  0.42  0.5  0.0  1.0
  Mo  Mo1  2  0.0  0.0  0.0  1.0
  Rh  Rh2  4  0.46  0.46  0.97  1.0

Tc Mo Rh Rh
Tc Mo Rh Rh 0 2 + o - 0 3 o + - 1 3 - o - 1 2 o - - 
MoTcRh2 is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MoTcRh2 clusters. Mo(1) is bonded in a distorted L-shaped geometry to two equivalent Rh(1) atoms. Both Mo(1)-Rh(1) bond lengths are 0.32 Å. Tc(1) is bonded in a distorted L-shaped geometry to two equivalent Rh(1) atoms. Both Tc(1)-Rh(1) bond lengths are 0.32 Å. Rh(1) is bonded in a distorted L-shaped geometry to one Mo(1) and one Tc(1) atom.