The compound described by Tc3In is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to four equivalent Tc(1), four equivalent Tc(2), and four equivalent In(1) atoms to form TcIn4Tc8 cuboctahedra that share corners with twelve equivalent Tc(1)In4Tc8 cuboctahedra, edges with eight equivalent Tc(1)In4Tc8 cuboctahedra, edges with eight equivalent Tc(2)In4Tc8 cuboctahedra, edges with eight equivalent In(1)Tc12 cuboctahedra, faces with four equivalent Tc(2)In4Tc8 cuboctahedra, faces with four equivalent In(1)Tc12 cuboctahedra, and faces with ten equivalent Tc(1)In4Tc8 cuboctahedra. In the second Tc site, Tc(2) is bonded to eight equivalent Tc(1) and four equivalent In(1) atoms to form distorted TcIn4Tc8 cuboctahedra that share corners with four equivalent Tc(2)In4Tc8 cuboctahedra, corners with eight equivalent In(1)Tc12 cuboctahedra, edges with eight equivalent Tc(2)In4Tc8 cuboctahedra, edges with sixteen equivalent Tc(1)In4Tc8 cuboctahedra, faces with four equivalent Tc(2)In4Tc8 cuboctahedra, faces with six equivalent In(1)Tc12 cuboctahedra, and faces with eight equivalent Tc(1)In4Tc8 cuboctahedra. In(1) is bonded to four equivalent Tc(2) and eight equivalent Tc(1) atoms to form InTc12 cuboctahedra that share corners with four equivalent In(1)Tc12 cuboctahedra, corners with eight equivalent Tc(2)In4Tc8 cuboctahedra, edges with eight equivalent In(1)Tc12 cuboctahedra, edges with sixteen equivalent Tc(1)In4Tc8 cuboctahedra, faces with four equivalent In(1)Tc12 cuboctahedra, faces with six equivalent Tc(2)In4Tc8 cuboctahedra, and faces with eight equivalent Tc(1)In4Tc8 cuboctahedra. is represented by the CIF card [CIF]
data_InTc3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.041
_cell_length_b   5.041
_cell_length_c   5.041
_cell_angle_alpha   134.779
_cell_angle_beta   134.779
_cell_angle_gamma   65.874
_symmetry_Int_Tables_number   1
_cell_volume   63.553
_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
  In  In0  1  0.000  0.000  0.000  1.0
  Tc  Tc1  1  0.750  0.250  0.500  1.0
  Tc  Tc2  1  0.250  0.750  0.500  1.0
  Tc  Tc3  1  0.500  0.500  0.000  1.0
[/CIF]
.
The compound described by Tc3In is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to four equivalent Tc(1), four equivalent Tc(2), and four equivalent In(1) atoms to form TcIn4Tc8 cuboctahedra that share corners with twelve equivalent Tc(1)In4Tc8 cuboctahedra, edges with eight equivalent Tc(1)In4Tc8 cuboctahedra, edges with eight equivalent Tc(2)In4Tc8 cuboctahedra, edges with eight equivalent In(1)Tc12 cuboctahedra, faces with four equivalent Tc(2)In4Tc8 cuboctahedra, faces with four equivalent In(1)Tc12 cuboctahedra, and faces with ten equivalent Tc(1)In4Tc8 cuboctahedra. In the second Tc site, Tc(2) is bonded to eight equivalent Tc(1) and four equivalent In(1) atoms to form distorted TcIn4Tc8 cuboctahedra that share corners with four equivalent Tc(2)In4Tc8 cuboctahedra, corners with eight equivalent In(1)Tc12 cuboctahedra, edges with eight equivalent Tc(2)In4Tc8 cuboctahedra, edges with sixteen equivalent Tc(1)In4Tc8 cuboctahedra, faces with four equivalent Tc(2)In4Tc8 cuboctahedra, faces with six equivalent In(1)Tc12 cuboctahedra, and faces with eight equivalent Tc(1)In4Tc8 cuboctahedra. In(1) is bonded to four equivalent Tc(2) and eight equivalent Tc(1) atoms to form InTc12 cuboctahedra that share corners with four equivalent In(1)Tc12 cuboctahedra, corners with eight equivalent Tc(2)In4Tc8 cuboctahedra, edges with eight equivalent In(1)Tc12 cuboctahedra, edges with sixteen equivalent Tc(1)In4Tc8 cuboctahedra, faces with four equivalent In(1)Tc12 cuboctahedra, faces with six equivalent Tc(2)In4Tc8 cuboctahedra, and faces with eight equivalent Tc(1)In4Tc8 cuboctahedra. is represented by the CIF card [CIF]
data_InTc3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.041
_cell_length_b   5.041
_cell_length_c   5.041
_cell_angle_alpha   134.779
_cell_angle_beta   134.779
_cell_angle_gamma   65.874
_symmetry_Int_Tables_number   1
_cell_volume   63.553
_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
  In  In0  1  0.000  0.000  0.000  1.0
  Tc  Tc1  1  0.750  0.250  0.500  1.0
  Tc  Tc2  1  0.250  0.750  0.500  1.0
  Tc  Tc3  1  0.500  0.500  0.000  1.0
[/CIF]
.