data_TcBi2Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.89
_cell_length_b   4.89
_cell_length_c   4.89
_cell_angle_alpha   121.89
_cell_angle_beta   121.89
_cell_angle_gamma   86.76
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcBi2Rh
_chemical_formula_sum   'Tc1 Bi2 Rh1'
_cell_volume   80.05
_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  0.0  1.0
  Bi  Bi0  1  0.0  0.37  0.78  1.0
  Bi  Bi1  1  0.37  0.0  0.78  1.0
  Rh  Rh2  1  0.0  0.0  0.55  1.0

data_TcBi2Rh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.71
_cell_length_b   6.71
_cell_length_c   4.89
_cell_angle_alpha   90.0
_cell_angle_beta   133.38
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TcBi2Rh
_chemical_formula_sum   'Tc2 Bi4 Rh2'
_cell_volume   160.1
_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  0.0  1.0
  Bi  Bi1  4  0.41  0.19  0.6  1.0
  Rh  Rh2  2  0.45  0.0  0.45  1.0

Tc Bi Bi Rh
Tc Bi Bi Rh 0 1 o o - 0 1 o - - 0 2 - o - 0 2 o o - 0 3 o o - 0 3 o o o 1 3 o o o 2 3 o o o 
TcRhBi2 crystallizes in the monoclinic Cm space group. Tc(1) is bonded in a 6-coordinate geometry to two equivalent Rh(1) and four equivalent Bi(1) atoms. There is one shorter (2.19 Å) and one longer (2.70 Å) Tc(1)-Rh(1) bond length. There are two shorter (2.58 Å) and two longer (2.65 Å) Tc(1)-Bi(1) bond lengths. Rh(1) is bonded in a 2-coordinate geometry to two equivalent Tc(1) and two equivalent Bi(1) atoms. Both Rh(1)-Bi(1) bond lengths are 1.56 Å. Bi(1) is bonded in a distorted single-bond geometry to two equivalent Tc(1) and one Rh(1) atom.