data_[Ce8Np4Cr4N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Np  1.3600  1.7500  1.0000
  Cr  1.6600  1.4000  0.9400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.4555]
_cell_length_b [13.4932]
_cell_length_c [10.3592]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Ce2NpCrN5]
_chemical_formula_sum '[Ce8 Np4 Cr4 N20]'
_cell_volume [483.0125]
_cell_formula_units_Z [4]
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
[
  Ce  Ce0  4  0.0000  0.1033  0.6902  1
  Ce  Ce1  4  0.0000  0.1429  0.3034  1
  Np  Np2  4  0.0000  0.2058  0.0125  1
  Cr  Cr3  4  0.0000  0.4852  0.4585  1
  N  N4  4  0.0000  0.0416  0.0351  1
  N  N5  4  0.0000  0.2780  0.6548  1
  N  N6  4  0.0000  0.3246  0.3817  1
  N  N7  4  0.0000  0.3720  0.0037  1
  N  N8  4  0.0000  0.4851  0.7840  1
]