data_Tc2RhBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.74
_cell_length_b   8.74
_cell_length_c   8.74
_cell_angle_alpha   19.03
_cell_angle_beta   19.03
_cell_angle_gamma   19.03
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2RhBr
_chemical_formula_sum   'Tc2 Rh1 Br1'
_cell_volume   61.95
_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  Tc2  1  0.0  0.0  0.41  1.0
  Tc  Tc3  1  0.0  0.0  0.31  1.0
  Rh  Rh1  1  0.0  0.0  0.86  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_Tc2RhBr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.0
_cell_length_b   2.89
_cell_length_c   8.74
_cell_angle_alpha   90.0
_cell_angle_beta   101.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Tc2RhBr
_chemical_formula_sum   'Tc4 Rh2 Br2'
_cell_volume   123.91
_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  0.59  1.0
  Tc  Tc1  2  0.0  0.0  0.69  1.0
  Rh  Rh2  2  0.0  0.0  0.14  1.0
  Br  Br3  2  0.0  0.0  0.0  1.0

Tc Tc Rh Br
Tc Tc Rh Br 0 1 o o o 2 3 o o + 
Tc2RhBr crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Tc2RhBr clusters. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a single-bond geometry to one Tc(2) atom. The Tc(1)-Tc(2) bond length is 0.88 Å. In the second Tc site, Tc(2) is bonded in a distorted linear geometry to one Tc(1) and one Br(1) atom. The Tc(2)-Br(1) bond length is 2.73 Å. Rh(1) is bonded in a single-bond geometry to one Br(1) atom. The Rh(1)-Br(1) bond length is 1.20 Å. Br(1) is bonded in a single-bond geometry to one Tc(2) and one Rh(1) atom.