data_[Na4Ce2Pr2F16]
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
  Pr  1.1300  1.8500  1.0600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [5.6620]
_cell_length_b [5.6620]
_cell_length_c [11.3277]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [Na2CePrF8]
_chemical_formula_sum '[Na4 Ce2 Pr2 F16]'
_cell_volume [363.1460]
_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  0.0000  0.0000  0.5000  1.0
  Na  Na1  2  0.0000  0.5000  0.2500  1.0
  Ce  Ce2  2  0.0000  0.5000  0.7500  1.0
  Pr  Pr3  2  0.0000  0.0000  0.0000  1.0
  F  F4  16  0.2373  0.2497  0.8752  1.0
]