data_Ta2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.33
_cell_length_b   5.33
_cell_length_c   2.9
_cell_angle_alpha   91.24
_cell_angle_beta   91.24
_cell_angle_gamma   32.83
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2C
_chemical_formula_sum   'Ta2 C1'
_cell_volume   44.58
_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
  Ta  Ta1  1  0.67  0.0  0.26  1.0
  Ta  Ta2  1  0.48  0.0  0.63  1.0
  C  C0  1  0.0  0.0  0.0  1.0

data_Ta2C
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.9
_cell_length_b   3.01
_cell_length_c   5.33
_cell_angle_alpha   106.41
_cell_angle_beta   91.24
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2C
_chemical_formula_sum   'Ta2 C1'
_cell_volume   44.58
_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
  Ta  Ta0  1  0.37  0.0  0.52  1.0
  Ta  Ta1  1  0.74  0.0  0.33  1.0
  C  C2  1  0.0  0.0  0.0  1.0

Ta Ta C
Ta Ta C 0 1 o o o 0 2 + o o 