data_[Na4Nb4P8N24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Nb  1.6000  1.4500  0.8200
  P  2.1900  1.0000  0.5500
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.6575]
_cell_length_b [11.4357]
_cell_length_c [5.2145]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.6780]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaNb(PN3)2]
_chemical_formula_sum '[Na4 Nb4 P8 N24]'
_cell_volume [586.3872]
_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
[
  Na  Na0  4  0.0000  0.0688  0.2500  1
  Nb  Nb1  4  0.0000  0.2519  0.7500  1
  P  P2  8  0.2290  0.4261  0.2305  1
  N  N3  8  0.0998  0.3439  0.0729  1
  N  N4  8  0.1270  0.1426  0.6938  1
  N  N5  8  0.2322  0.4644  0.5338  1
]