data_[Tb16C24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [I-43d]
_cell_length_a [8.2683]
_cell_length_b [8.2683]
_cell_length_c [8.2683]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [220]
_chemical_formula_structural [Tb2C3]
_chemical_formula_sum '[Tb16 C24]'
_cell_volume [565.2671]
_cell_formula_units_Z [8]
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
[
  Tb  Tb0  16  0.0507  0.0507  0.0507  1
  C  C1  24  0.0000  0.2500  0.2941  1
]