data_[Na2Pu1Np1N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pu  1.2800  1.7500  0.9675
  Np  1.3600  1.7500  1.0000
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.9839]
_cell_length_b [3.4857]
_cell_length_c [6.0329]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.8057]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na2PuNpN4]
_chemical_formula_sum '[Na2 Pu1 Np1 N4]'
_cell_volume [118.3933]
_cell_formula_units_Z [1]
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  1  0.5000  0.0000  0.5000  1
  Na  Na1  1  0.5000  0.5000  0.0000  1
  Pu  Pu2  1  0.0000  0.5000  0.5000  1
  Np  Np3  1  0.0000  0.0000  0.0000  1
  N  N4  2  0.1780  0.0000  0.7373  1
  N  N5  2  0.1824  0.5000  0.2169  1
]