data_[Y8C4I4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  C  2.5500  0.7000  0.3000
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [6.5269]
_cell_length_b [6.5269]
_cell_length_c [10.7692]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [Y2CI]
_chemical_formula_sum '[Y8 C4 I4]'
_cell_volume [458.7799]
_cell_formula_units_Z [4]
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
[
  Y  Y0  8  0.1471  0.2500  0.6250  1
  C  C1  4  0.0000  0.0000  0.5000  1
  I  I2  4  0.0000  0.0000  0.0000  1
]