data_Al2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.83
_cell_length_b   4.83
_cell_length_c   4.83
_cell_angle_alpha   142.14
_cell_angle_beta   140.37
_cell_angle_gamma   55.97
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2Tc
_chemical_formula_sum   'Al2 Tc1'
_cell_volume   43.81
_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
  Al  Al0  1  0.0  0.0  0.92  1.0
  Al  Al1  1  0.0  0.0  0.62  1.0
  Tc  Tc2  1  0.0  0.0  0.0  1.0

data_Al2Tc
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.13
_cell_length_b   3.28
_cell_length_c   4.83
_cell_angle_alpha   109.82
_cell_angle_beta   108.93
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2Tc
_chemical_formula_sum   'Al2 Tc1'
_cell_volume   43.81
_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
  Al  Al0  1  0.0  0.62  0.62  1.0
  Al  Al1  1  0.0  0.92  0.92  1.0
  Tc  Tc2  1  0.0  0.0  0.0  1.0

Al Al Tc