data_[Na8Ce4F20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ce  1.1200  1.8500  1.0800
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [9.9421]
_cell_length_b [7.3408]
_cell_length_c [6.5446]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Na2CeF5]
_chemical_formula_sum '[Na8 Ce4 F20]'
_cell_volume [477.6439]
_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  8  0.1754  0.0111  0.5145  1
  Ce  Ce1  4  0.0040  0.7500  0.9169  1
  F  F2  8  0.1005  0.0380  0.8547  1
  F  F3  4  0.0019  0.2500  0.4415  1
  F  F4  4  0.1813  0.7500  0.1388  1
  F  F5  4  0.2239  0.2500  0.1916  1
]