data_[Na2As2Cl4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  As  2.1800  1.1500  0.6600
  Cl  3.1600  1.0000  0.7800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1]
_cell_length_a [7.3689]
_cell_length_b [3.7345]
_cell_length_c [7.9012]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.9813]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [4]
_chemical_formula_structural [NaAs(ClO)2]
_chemical_formula_sum '[Na2 As2 Cl4 O4]'
_cell_volume [201.6279]
_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
[
  Na  Na0  2  0.4442  0.2333  0.6778  1
  As  As1  2  0.1224  0.2441  0.1684  1
  Cl  Cl2  2  0.1032  0.7370  0.7018  1
  Cl  Cl3  2  0.3619  0.2358  0.0456  1
  O  O4  2  0.0720  0.7406  0.0910  1
  O  O5  2  0.3116  0.2502  0.3737  1
]