data_[Na4Si4F24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Si  1.9000  1.1000  0.5400
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Fm-3m]
_cell_length_a [7.9950]
_cell_length_b [7.9950]
_cell_length_c [7.9950]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [225]
_chemical_formula_structural [NaSiF6]
_chemical_formula_sum '[Na4 Si4 F24]'
_cell_volume [511.0415]
_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  0.0000  0.0000  0.5000  1.0
  Si  Si1  4  0.0000  0.0000  0.0000  1.0
  F  F2  24  0.0000  0.0000  0.2130  1.0
]