data_[Y8I12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.8600]
_cell_length_b [4.0835]
_cell_length_c [12.1832]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.8613]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Y2I3]
_chemical_formula_sum '[Y8 I12]'
_cell_volume [810.7127]
_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  4  0.0667  0.5000  0.9613  1.0
  Y  Y1  4  0.1296  0.0000  0.2748  1.0
  I  I2  4  0.0338  0.0000  0.7419  1.0
  I  I3  4  0.1670  0.5000  0.5023  1.0
  I  I4  4  0.2117  0.0000  0.1215  1.0
]