data_GaCuTc2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.93
_cell_length_b   2.93
_cell_length_c   6.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaCuTc2
_chemical_formula_sum   'Ga1 Cu1 Tc2'
_cell_volume   56.62
_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
  Ga  Ga1  1  0.47  0.47  0.86  1.0
  Cu  Cu0  1  0.0  0.0  0.37  1.0
  Tc  Tc2  1  0.0  0.0  0.07  1.0
  Tc  Tc3  1  0.47  0.47  0.58  1.0

data_GaCuTc2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.15
_cell_length_b   4.15
_cell_length_c   6.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   GaCuTc2
_chemical_formula_sum   'Ga2 Cu2 Tc4'
_cell_volume   113.24
_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
  Ga  Ga0  2  0.47  0.0  0.86  1.0
  Tc  Tc1  2  0.0  0.0  0.07  1.0
  Cu  Cu2  2  0.0  0.0  0.37  1.0
  Tc  Tc3  2  0.47  0.0  0.58  1.0

Ga Cu Tc Tc
Tc2CuGa crystallizes in the monoclinic Cm space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 5-coordinate geometry to one Cu(1) and four equivalent Ga(1) atoms. The Tc(1)-Cu(1) bond length is 1.98 Å. There are a spread of Tc(1)-Ga(1) bond distances ranging from 2.37-2.60 Å. In the second Tc site, Tc(2) is bonded in a distorted single-bond geometry to four equivalent Cu(1) and one Ga(1) atom. There are a spread of Tc(2)-Cu(1) bond distances ranging from 2.38-2.61 Å. The Tc(2)-Ga(1) bond length is 1.84 Å. Cu(1) is bonded in a 9-coordinate geometry to one Tc(1), four equivalent Tc(2), and four equivalent Cu(1) atoms. All Cu(1)-Cu(1) bond lengths are 2.93 Å. Ga(1) is bonded in a 5-coordinate geometry to one Tc(2) and four equivalent Tc(1) atoms.