data_[Np8Mn4Nb4N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Mn  1.5500  1.4000  0.6483
  Nb  1.6000  1.4500  0.8200
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.1653]
_cell_length_b [12.8204]
_cell_length_c [10.0601]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Np2MnNbN5]
_chemical_formula_sum '[Np8 Mn4 Nb4 N20]'
_cell_volume [408.2500]
_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
[
  Np  Np0  4  0.0000  0.1029  0.6848  1
  Np  Np1  4  0.0000  0.1470  0.3062  1
  Mn  Mn2  4  0.0000  0.4727  0.4565  1
  Nb  Nb3  4  0.0000  0.2026  0.0089  1
  N  N4  4  0.0000  0.0476  0.0657  1
  N  N5  4  0.0000  0.2811  0.6604  1
  N  N6  4  0.0000  0.3250  0.3644  1
  N  N7  4  0.0000  0.3711  0.9984  1
  N  N8  4  0.0000  0.4849  0.7786  1
]