[CIF]
data_Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.75894366
_cell_length_b   2.75894366
_cell_length_c   4.41476747
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc
_chemical_formula_sum   Tc2
_cell_volume   29.10208667
_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  0.00000000  1.59287687  1.10369187  1
  Tc  Tc1  1  1.37947183  0.79643843  3.31107560  1
[/CIF]
