data_[Na10Se2Cl4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Se  2.5500  1.1500  1.0133
  Cl  3.1600  1.0000  0.7800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [7.3556]
_cell_length_b [9.7066]
_cell_length_c [5.9806]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Na5Se(ClO2)2]
_chemical_formula_sum '[Na10 Se2 Cl4 O8]'
_cell_volume [426.9965]
_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  8  0.2102  0.1815  0.8839  1
  Na  Na1  2  0.5000  0.0000  0.4874  1
  Se  Se2  2  0.0000  0.0000  0.4101  1
  Cl  Cl3  4  0.5000  0.1838  0.1516  1
  O  O4  4  0.0000  0.1577  0.2337  1
  O  O5  4  0.1872  0.0000  0.6009  1
]