data_[Cs2Na2I4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Na  0.9300  1.8000  1.1600
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [5.7548]
_cell_length_b [4.8999]
_cell_length_c [14.6047]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [CsNaI2]
_chemical_formula_sum '[Cs2 Na2 I4]'
_cell_volume [411.8173]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.3977  1.0
  Na  Na1  2  0.5000  0.0000  0.1777  1.0
  I  I2  2  0.0000  0.0000  0.1030  1.0
  I  I3  2  0.5000  0.0000  0.8161  1.0
]