data_GaTc3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.92
_cell_length_b   2.92
_cell_length_c   6.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaTc3
_chemical_formula_sum   'Ga1 Tc3'
_cell_volume   57.98
_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  Ga0  1  0.0  0.0  0.0  1.0
  Tc  Tc1  1  0.46  0.46  0.14  1.0
  Tc  Tc2  1  0.0  0.0  0.41  1.0
  Tc  Tc3  1  0.46  0.46  0.68  1.0

data_GaTc3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.13
_cell_length_b   4.13
_cell_length_c   6.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   GaTc3
_chemical_formula_sum   'Ga2 Tc6'
_cell_volume   115.95
_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  0.0  0.0  0.0  1.0
  Tc  Tc1  2  0.0  0.0  0.41  1.0
  Tc  Tc2  2  0.46  0.0  0.14  1.0
  Tc  Tc3  2  0.46  0.0  0.68  1.0

Ga Tc Tc Tc
Tc3Ga crystallizes in the monoclinic Cm space group. There are three inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 4-coordinate geometry to four equivalent Tc(2) and four equivalent Ga(1) atoms. There are a spread of Tc(1)-Tc(2) bond distances ranging from 2.64-2.90 Å. There are a spread of Tc(1)-Ga(1) bond distances ranging from 2.11-2.42 Å. In the second Tc site, Tc(2) is bonded in a 13-coordinate geometry to four equivalent Tc(1), four equivalent Tc(2), four equivalent Tc(3), and one Ga(1) atom. All Tc(2)-Tc(2) bond lengths are 2.92 Å. There are a spread of Tc(2)-Tc(3) bond distances ranging from 2.64-2.90 Å. The Tc(2)-Ga(1) bond length is 2.77 Å. In the third Tc site, Tc(3) is bonded to four equivalent Tc(2), four equivalent Tc(3), and four equivalent Ga(1) atoms to form a mixture of distorted face and corner-sharing TcGa4Tc8 cuboctahedra. All Tc(3)-Tc(3) bond lengths are 2.92 Å. There are a spread of Tc(3)-Ga(1) bond distances ranging from 2.90-3.13 Å. Ga(1) is bonded in a 4-coordinate geometry to one Tc(2), four equivalent Tc(1), and four equivalent Tc(3) atoms.