data_[Na2Ce2Cl8]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.5588]
_cell_length_b [7.7101]
_cell_length_c [6.9605]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.8525]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [NaCeCl4]
_chemical_formula_sum '[Na2 Ce2 Cl8]'
_cell_volume [351.9468]
_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  0.5000  0.3435  0.7500  1
  Ce  Ce1  2  0.0000  0.1841  0.2500  1
  Cl  Cl2  4  0.2333  0.0965  0.5771  1
  Cl  Cl3  4  0.2583  0.4020  0.0686  1
]