data_[Na4Mg16Cl32]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [F-43m]
_cell_length_a [11.0516]
_cell_length_b [11.0516]
_cell_length_c [11.0516]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [216]
_chemical_formula_structural [NaMg4Cl8]
_chemical_formula_sum '[Na4 Mg16 Cl32]'
_cell_volume [1349.8147]
_cell_formula_units_Z [4]
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  4  0.2500  0.2500  0.7500  1
  Mg  Mg1  16  0.1292  0.1292  0.3708  1
  Cl  Cl2  16  0.1093  0.1093  0.6093  1
  Cl  Cl3  16  0.1384  0.1384  0.1384  1
]