data_[C24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [2.4692]
_cell_length_b [2.4692]
_cell_length_c [57.2641]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [C]
_chemical_formula_sum '[C24]'
_cell_volume [302.3498]
_cell_formula_units_Z [24]
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
[
  C  C0  6  0.0000  0.0000  0.0316  1.0
  C  C1  6  0.0000  0.0000  0.0946  1.0
  C  C2  6  0.0000  0.0000  0.2387  1.0
  C  C3  6  0.0000  0.0000  0.3649  1.0
]