data_[Sr3Cd6I3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Cd  1.6900  1.5500  1.0900
  I  2.6600  1.4000  1.2733
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.8342]
_cell_length_b [5.8342]
_cell_length_c [15.3838]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [SrCd2IO6]
_chemical_formula_sum '[Sr3 Cd6 I3 O18]'
_cell_volume [453.4860]
_cell_formula_units_Z [3]
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
[
  Sr  Sr0  3  0.0000  0.0000  0.1945  1.0
  Cd  Cd1  3  0.0000  0.0000  0.4619  1.0
  Cd  Cd2  3  0.0000  0.0000  0.9798  1.0
  I  I3  3  0.0000  0.0000  0.6770  1.0
  O  O4  9  0.0106  0.7417  0.5961  1.0
  O  O5  9  0.0116  0.3713  0.4123  1.0
]