data_CuTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.56
_cell_length_b   4.32
_cell_length_c   4.87
_cell_angle_alpha   90.0
_cell_angle_beta   94.77
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuTc
_chemical_formula_sum   'Cu2 Tc2'
_cell_volume   53.62
_cell_formula_units_Z   2
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
  Cu  Cu0  1  0.91  0.24  0.26  1.0
  Cu  Cu1  1  0.24  0.08  0.6  1.0
  Tc  Tc2  1  0.02  0.24  0.8  1.0
  Tc  Tc3  1  0.13  0.08  0.06  1.0

data_CuTc
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.56
_cell_length_b   4.32
_cell_length_c   4.87
_cell_angle_alpha   90.0
_cell_angle_beta   94.77
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   CuTc
_chemical_formula_sum   'Cu2 Tc2'
_cell_volume   53.62
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.06  0.92  0.63  1.0
  Cu  Cu1  2  0.17  0.92  0.17  1.0

Cu Cu Tc Tc
TcCu crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one TcCu cluster. Tc(1) is bonded in a distorted water-like geometry to one Tc(1) and one Cu(1) atom. The Tc(1)-Tc(1) bond length is 1.45 Å. The Tc(1)-Cu(1) bond length is 1.37 Å. Cu(1) is bonded in a 1-coordinate geometry to one Tc(1) atom.