The compound described by Tc3C is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Tc(1) is bonded in a 4-coordinate geometry to four equivalent C(1) atoms. C(1) is bonded to twelve equivalent Tc(1) atoms to form a mixture of face and corner-sharing CTc12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tc3C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.337
_cell_length_b   5.337
_cell_length_c   4.097
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   101.071
_cell_formula_units_Z   2
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
  Tc  Tc0  1  0.174  0.349  0.250  1.0
  Tc  Tc1  1  0.651  0.826  0.250  1.0
  Tc  Tc2  1  0.174  0.826  0.250  1.0
  Tc  Tc3  1  0.826  0.651  0.750  1.0
  Tc  Tc4  1  0.349  0.174  0.750  1.0
  Tc  Tc5  1  0.826  0.174  0.750  1.0
  C  C6  1  0.333  0.667  0.750  1.0
  C  C7  1  0.667  0.333  0.250  1.0
[/CIF]
.
The compound described by Tc3C is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Tc(1) is bonded in a 4-coordinate geometry to four equivalent C(1) atoms. C(1) is bonded to twelve equivalent Tc(1) atoms to form a mixture of face and corner-sharing CTc12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tc3C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.337
_cell_length_b   5.337
_cell_length_c   4.097
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   101.071
_cell_formula_units_Z   2
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
  Tc  Tc0  1  0.174  0.349  0.250  1.0
  Tc  Tc1  1  0.651  0.826  0.250  1.0
  Tc  Tc2  1  0.174  0.826  0.250  1.0
  Tc  Tc3  1  0.826  0.651  0.750  1.0
  Tc  Tc4  1  0.349  0.174  0.750  1.0
  Tc  Tc5  1  0.826  0.174  0.750  1.0
  C  C6  1  0.333  0.667  0.750  1.0
  C  C7  1  0.667  0.333  0.250  1.0
[/CIF]
.