data_[Na3H18Cl24]
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 [R-3]
_cell_length_a [8.0806]
_cell_length_b [8.0806]
_cell_length_c [20.8804]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Na(H3Cl4)2]
_chemical_formula_sum '[Na3 H18 Cl24]'
_cell_volume [1180.7417]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0000  1.0
  H  H1  18  0.0067  0.7406  0.5818  1.0
  Cl  Cl2  18  0.0057  0.4250  0.4056  1.0
  Cl  Cl3  6  0.0000  0.0000  0.4374  1.0
]