data_Ga5Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.16
_cell_length_b   5.16
_cell_length_c   5.16
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga5Tc
_chemical_formula_sum   'Ga5 Tc1'
_cell_volume   97.1
_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
  Ga  Ga1  1  0.74  0.74  0.74  1.0
  Ga  Ga2  1  0.55  0.74  0.55  1.0
  Ga  Ga3  1  0.55  0.55  0.74  1.0
  Ga  Ga4  1  0.74  0.55  0.55  1.0
  Tc  Tc5  1  0.47  0.47  0.47  1.0

data_Ga5Tc
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.16
_cell_length_b   5.16
_cell_length_c   12.64
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Ga5Tc
_chemical_formula_sum   'Ga15 Tc3'
_cell_volume   291.29
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  9  0.06  0.13  0.38  1.0
  Ga  Ga1  3  0.0  0.0  0.0  1.0
  Ga  Ga2  3  0.0  0.0  0.26  1.0
  Tc  Tc3  3  0.0  0.0  0.53  1.0

Ga Ga Ga Ga Ga Tc
TcGa5 crystallizes in the trigonal R3m space group. Tc(1) is bonded in a 6-coordinate geometry to three equivalent Ga(2) and three equivalent Ga(3) atoms. All Tc(1)-Ga(2) bond lengths are 3.08 Å. All Tc(1)-Ga(3) bond lengths are 1.91 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to six equivalent Ga(3) atoms. All Ga(1)-Ga(3) bond lengths are 2.81 Å. In the second Ga site, Ga(2) is bonded in a 6-coordinate geometry to three equivalent Tc(1) and three equivalent Ga(3) atoms. All Ga(2)-Ga(3) bond lengths are 1.70 Å. In the third Ga site, Ga(3) is bonded in a 2-coordinate geometry to one Tc(1), one Ga(2), two equivalent Ga(1), and two equivalent Ga(3) atoms. Both Ga(3)-Ga(3) bond lengths are 0.98 Å.