data_[Nd18Np3N24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Np  1.3600  1.7500  1.0000
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [7.5524]
_cell_length_b [7.5524]
_cell_length_c [14.8456]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Nd6NpN8]
_chemical_formula_sum '[Nd18 Np3 N24]'
_cell_volume [733.3199]
_cell_formula_units_Z [3]
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
[
  Nd  Nd0  18  0.0337  0.6242  0.9151  1
  Np  Np1  3  0.0000  0.0000  0.0000  1
  N  N2  18  0.0103  0.7642  0.0841  1
  N  N3  6  0.0000  0.0000  0.3251  1
]