data_Tc2PRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.78
_cell_length_b   2.78
_cell_length_c   8.29
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   117.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2PRh
_chemical_formula_sum   'Tc2 P1 Rh1'
_cell_volume   57.06
_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  0.45  0.0  0.45  1.0
  Tc  Tc3  1  0.45  0.0  0.84  1.0
  P  P0  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.0  0.0  0.15  1.0

data_Tc2PRh
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.78
_cell_length_b   2.78
_cell_length_c   8.29
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   117.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2PRh
_chemical_formula_sum   'Tc2 P1 Rh1'
_cell_volume   57.06
_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  0.45  0.0  0.45  1.0
  Tc  Tc1  1  0.45  0.0  0.84  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  Rh  Rh3  1  0.0  0.0  0.15  1.0

Tc Tc P Rh
Tc Tc P Rh 0 0 + + o 0 0 o + o 0 0 + o o 0 3 o o o 0 3 + o o 0 1 o o o 1 2 o o + 1 2 + o + 2 3 o o o 
Tc2RhP crystallizes in the triclinic P1 space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 9-coordinate geometry to one Tc(2), six equivalent Tc(1), and two equivalent Rh(1) atoms. The Tc(1)-Tc(2) bond length is 3.25 Å. There are four shorter (2.78 Å) and two longer (2.90 Å) Tc(1)-Tc(1) bond lengths. There is one shorter (2.82 Å) and one longer (2.94 Å) Tc(1)-Rh(1) bond length. In the second Tc site, Tc(2) is bonded in an L-shaped geometry to one Tc(1) and two equivalent P(1) atoms. There is one shorter (1.82 Å) and one longer (2.01 Å) Tc(2)-P(1) bond length. Rh(1) is bonded in a single-bond geometry to two equivalent Tc(1) and one P(1) atom. The Rh(1)-P(1) bond length is 1.21 Å. P(1) is bonded in a 3-coordinate geometry to two equivalent Tc(2) and one Rh(1) atom.