data_[Cs4Na2O2F2]
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
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.2712]
_cell_length_b [4.3433]
_cell_length_c [15.5927]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Cs2NaOF]
_chemical_formula_sum '[Cs4 Na2 O2 F2]'
_cell_volume [289.2576]
_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  0.2657  1.0
  Cs  Cs1  2  0.0000  0.0000  0.9946  1.0
  Na  Na2  2  0.0000  0.0000  0.6096  1.0
  O  O3  2  0.0000  0.5000  0.6501  1.0
  F  F4  2  0.0000  0.0000  0.4630  1.0
]