data_[Na6Pr2U4N12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pr  1.1300  1.8500  1.0600
  U  1.3800  1.7500  0.9913
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.3710]
_cell_length_b [3.5839]
_cell_length_c [7.0247]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.7351]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3PrU2N6]
_chemical_formula_sum '[Na6 Pr2 U4 N12]'
_cell_volume [377.4556]
_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  0.1715  0.0000  0.8357  1
  Na  Na1  2  0.0000  0.5000  0.5000  1
  Pr  Pr2  2  0.0000  0.5000  0.0000  1
  U  U3  4  0.1679  0.0000  0.3329  1
  N  N4  4  0.0317  0.0000  0.2552  1
  N  N5  4  0.1647  0.5000  0.1402  1
  N  N6  4  0.1880  0.5000  0.5485  1
]