data_[Na2H4Cl6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  H  2.2000  0.2500  0.0000
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.5030]
_cell_length_b [4.1703]
_cell_length_c [13.0158]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.9708]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaH2Cl3]
_chemical_formula_sum '[Na2 H4 Cl6]'
_cell_volume [297.0830]
_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  0.2701  0.2500  0.0629  1
  H  H1  2  0.0009  0.2500  0.7972  1
  H  H2  2  0.4896  0.2500  0.4191  1
  Cl  Cl3  2  0.2293  0.7500  0.2371  1
  Cl  Cl4  2  0.2304  0.7500  0.9215  1
  Cl  Cl5  2  0.2751  0.7500  0.5731  1
]