data_Tc2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   5.76
_cell_angle_alpha   90.54
_cell_angle_beta   90.54
_cell_angle_gamma   36.82
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2C
_chemical_formula_sum   'Tc4 C2'
_cell_volume   73.01
_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  Tc2  1  0.6  0.0  0.65  1.0
  Tc  Tc3  1  0.01  0.0  0.97  1.0
  Tc  Tc4  1  0.67  0.0  0.78  1.0
  Tc  Tc5  1  0.07  0.0  0.11  1.0
  C  C0  1  0.12  0.0  0.53  1.0
  C  C1  1  0.55  0.0  0.23  1.0

data_Tc2C
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.91
_cell_length_b   4.6
_cell_length_c   5.76
_cell_angle_alpha   90.54
_cell_angle_beta   90.0
_cell_angle_gamma   108.41
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Tc2C
_chemical_formula_sum   'Tc4 C2'
_cell_volume   73.01
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.0  0.17  0.09  1.0
  Tc  Tc1  2  0.0  0.23  0.23  1.0
  C  C2  2  0.0  0.28  0.65  1.0

Tc Tc Tc Tc C C
Tc Tc Tc Tc C C 0 2 o o o 0 4 + o o 0 4 o o o 0 5 o o o 1 3 o o + 1 4 o o o 1 5 o o + 1 5 - o + 2 4 + o o 2 4 o o o 2 5 o o + 3 4 o o o 3 5 o o o 3 5 - o o 4 4 + - o 4 5 o o o 5 5 + - o 