data_SrRe2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.22
_cell_length_b   3.22
_cell_length_c   7.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrRe2Tc
_chemical_formula_sum   'Sr1 Re2 Tc1'
_cell_volume   79.69
_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
  Sr  Sr2  1  0.0  0.0  0.0  1.0
  Re  Re0  1  0.61  0.61  0.16  1.0
  Re  Re1  1  0.61  0.61  0.51  1.0
  Tc  Tc3  1  0.0  0.0  0.84  1.0

data_SrRe2Tc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.56
_cell_length_b   4.56
_cell_length_c   7.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrRe2Tc
_chemical_formula_sum   'Sr2 Re4 Tc2'
_cell_volume   159.38
_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
  Sr  Sr0  2  0.0  0.0  0.0  1.0
  Tc  Tc1  2  0.0  0.0  0.84  1.0
  Re  Re2  2  0.11  0.5  0.16  1.0
  Re  Re3  2  0.11  0.5  0.51  1.0

Sr Re Re Tc
SrRe2Tc crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 1-coordinate geometry to one Re(1) and one Tc(1) atom. The Sr(1)-Re(1) bond length is 2.17 Å. The Sr(1)-Tc(1) bond length is 1.24 Å. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded in a 1-coordinate geometry to one Sr(1) and one Re(2) atom. The Re(1)-Re(2) bond length is 2.69 Å. In the second Re site, Re(2) is bonded in a 8-coordinate geometry to one Re(1), four equivalent Re(2), and three equivalent Tc(1) atoms. All Re(2)-Re(2) bond lengths are 3.22 Å. There is one shorter (3.06 Å) and two longer (3.41 Å) Re(2)-Tc(1) bond lengths. Tc(1) is bonded in a single-bond geometry to one Sr(1) and three equivalent Re(2) atoms.