data_[Na4Ce2W2N8]
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
  W  2.3600  1.3500  0.7667
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [7.1874]
_cell_length_b [7.0061]
_cell_length_c [5.2792]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [Na2CeWN4]
_chemical_formula_sum '[Na4 Ce2 W2 N8]'
_cell_volume [265.8369]
_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  4  0.2457  0.6477  0.9620  1.0
  Ce  Ce1  2  0.0000  0.8590  0.4620  1.0
  W  W2  2  0.0000  0.1753  0.0021  1.0
  N  N3  4  0.2287  0.3010  0.9209  1.0
  N  N4  2  0.0000  0.1584  0.3531  1.0
  N  N5  2  0.0000  0.9132  0.9168  1.0
]