data_ReTc2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.07
_cell_length_b   3.07
_cell_length_c   6.8
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ReTc2Sb
_chemical_formula_sum   'Re1 Tc2 Sb1'
_cell_volume   64.26
_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
  Re  Re0  1  0.54  0.54  0.32  1.0
  Tc  Tc2  1  0.54  0.54  0.05  1.0
  Tc  Tc3  1  0.0  0.0  0.7  1.0
  Sb  Sb1  1  0.0  0.0  0.13  1.0

data_ReTc2Sb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.35
_cell_length_b   4.35
_cell_length_c   6.8
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ReTc2Sb
_chemical_formula_sum   'Re2 Tc4 Sb2'
_cell_volume   128.52
_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  0.7  1.0
  Tc  Tc1  2  0.04  0.5  0.05  1.0
  Re  Re2  2  0.04  0.5  0.32  1.0
  Sb  Sb3  2  0.0  0.0  0.13  1.0

Re Tc Tc Sb
Re Tc Tc Sb 0 1 o o o 0 2 + + o 0 2 + o o 0 2 o + o 0 2 o o o 0 3 + + o 0 3 + o o 0 3 o + o 0 3 o o o 1 3 o + o 1 3 + o o 1 3 + + o 1 3 o o o 1 2 + + - 1 2 + o - 1 2 o + - 1 2 o o - 2 2 + o o 2 2 o + o 2 3 o o + 
ReTc2Sb crystallizes in the monoclinic Cm space group. Re(1) is bonded in a 5-coordinate geometry to one Tc(1), four equivalent Tc(2), and four equivalent Sb(1) atoms. The Re(1)-Tc(1) bond length is 1.84 Å. There are a spread of Re(1)-Tc(2) bond distances ranging from 3.29-3.50 Å. There are a spread of Re(1)-Sb(1) bond distances ranging from 2.38-2.66 Å. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 5-coordinate geometry to one Re(1), four equivalent Tc(2), and four equivalent Sb(1) atoms. There are a spread of Tc(1)-Tc(2) bond distances ranging from 3.09-3.31 Å. There are a spread of Tc(1)-Sb(1) bond distances ranging from 2.09-2.41 Å. In the second Tc site, Tc(2) is bonded in a 13-coordinate geometry to four equivalent Re(1), four equivalent Tc(1), four equivalent Tc(2), and one Sb(1) atom. All Tc(2)-Tc(2) bond lengths are 3.07 Å. The Tc(2)-Sb(1) bond length is 2.93 Å. Sb(1) is bonded in a 9-coordinate geometry to four equivalent Re(1), one Tc(2), and four equivalent Tc(1) atoms.