data_[Sr6Li6Ir3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Li  0.9800  1.4500  0.9000
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.7409]
_cell_length_b [5.7409]
_cell_length_c [14.9456]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Sr2Li2IrO6]
_chemical_formula_sum '[Sr6 Li6 Ir3 O18]'
_cell_volume [426.5859]
_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  6  0.0000  0.0000  0.2232  1.0
  Li  Li1  6  0.0000  0.0000  0.4238  1.0
  Ir  Ir2  3  0.0000  0.0000  0.0000  1.0
  O  O3  18  0.0237  0.5118  0.7464  1.0
]