data_Ti4ReTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   5.09
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ti4ReTc
_chemical_formula_sum   'Ti4 Re1 Tc1'
_cell_volume   93.02
_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
  Ti  Ti2  1  0.49  0.49  0.7  1.0
  Ti  Ti3  1  0.49  0.7  0.49  1.0
  Ti  Ti4  1  0.7  0.49  0.49  1.0
  Ti  Ti5  1  0.7  0.7  0.7  1.0
  Re  Re0  1  0.39  0.39  0.39  1.0
  Tc  Tc1  1  0.0  0.0  0.0  1.0

data_Ti4ReTc
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   12.46
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Ti4ReTc
_chemical_formula_sum   'Ti12 Re3 Tc3'
_cell_volume   279.05
_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
  Ti  Ti0  9  0.07  0.14  0.44  1.0
  Ti  Ti1  3  0.0  0.0  0.3  1.0
  Tc  Tc2  3  0.0  0.0  0.0  1.0
  Re  Re3  3  0.0  0.0  0.61  1.0

Ti Ti Ti Ti Re Tc
Ti Ti Ti Ti Re Tc 0 2 o o o 0 1 o o o 0 3 o o o 0 4 o o o 0 5 + o + 0 5 o + + 1 2 o o o 1 3 o o o 1 4 o o o 1 5 + + o 1 5 o + + 2 3 o o o 2 4 o o o 2 5 + + o 2 5 + o + 3 5 + + o 3 5 + o + 3 5 o + + 4 5 + o o 4 5 o + o 4 5 o o + 
Ti4ReTc crystallizes in the trigonal R3m space group. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 2-coordinate geometry to one Ti(2), two equivalent Ti(1), two equivalent Re(1), and three equivalent Tc(1) atoms. The Ti(1)-Ti(2) bond length is 1.80 Å. Both Ti(1)-Ti(1) bond lengths are 1.04 Å. There is one shorter (2.18 Å) and one longer (3.12 Å) Ti(1)-Re(1) bond length. There are two shorter (2.99 Å) and one longer (3.69 Å) Ti(1)-Tc(1) bond length. In the second Ti site, Ti(2) is bonded in a 9-coordinate geometry to three equivalent Ti(1), three equivalent Re(1), and four equivalent Tc(1) atoms. All Ti(2)-Re(1) bond lengths are 2.96 Å. There are three shorter (2.96 Å) and one longer (3.76 Å) Ti(2)-Tc(1) bond length. Re(1) is bonded in a 12-coordinate geometry to three equivalent Ti(2), six equivalent Ti(1), and three equivalent Tc(1) atoms. All Re(1)-Tc(1) bond lengths are 3.03 Å. Tc(1) is bonded in a 16-coordinate geometry to four equivalent Ti(2), nine equivalent Ti(1), and three equivalent Re(1) atoms.