data_[Ce9B18C9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  B  2.0400  0.8500  0.4100
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [6.6126]
_cell_length_b [6.6126]
_cell_length_c [11.2756]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [CeB2C]
_chemical_formula_sum '[Ce9 B18 C9]'
_cell_volume [426.9943]
_cell_formula_units_Z [9]
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
[
  Ce  Ce0  6  0.0000  0.0000  0.3136  1.0
  Ce  Ce1  3  0.0000  0.0000  0.0000  1.0
  B  B2  18  0.0000  0.2749  0.5000  1.0
  C  C3  9  0.0000  0.5000  0.5000  1.0
]