data_[Cs8Ag12I20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Ag  1.9300  1.6000  1.0867
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [13.0866]
_cell_length_b [13.2549]
_cell_length_c [10.4000]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.8628]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Cs2Ag3I5]
_chemical_formula_sum '[Cs8 Ag12 I20]'
_cell_volume [1765.4637]
_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
[
  Cs  Cs0  8  0.1764  0.2125  0.2094  1
  Ag  Ag1  8  0.1067  0.4567  0.5444  1
  Ag  Ag2  4  0.0000  0.1478  0.7500  1
  I  I3  8  0.0751  0.2438  0.5444  1
  I  I4  8  0.1912  0.0456  0.9057  1
  I  I5  4  0.0000  0.4678  0.2500  1
]