data_[Cs3Sr6I3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Sr  0.9500  2.0000  1.3200
  I  2.6600  1.4000  1.2733
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [6.1937]
_cell_length_b [6.1937]
_cell_length_c [16.7752]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [CsSr2IO6]
_chemical_formula_sum '[Cs3 Sr6 I3 O18]'
_cell_volume [557.3111]
_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
[
  Cs  Cs0  3  0.0000  0.0000  0.5311  1.0
  Sr  Sr1  3  0.0000  0.0000  0.3123  1.0
  Sr  Sr2  3  0.0000  0.0000  0.7859  1.0
  I  I3  3  0.0000  0.0000  0.9853  1.0
  O  O4  9  0.0636  0.6022  0.5809  1.0
  O  O5  9  0.0901  0.3915  0.7141  1.0
]