data_[Na6Np6Ga2N16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Np  1.3600  1.7500  1.0000
  Ga  1.8100  1.3000  0.7600
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.8903]
_cell_length_b [6.6139]
_cell_length_c [6.8248]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.9453]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3Np3GaN8]
_chemical_formula_sum '[Na6 Np6 Ga2 N16]'
_cell_volume [445.2413]
_cell_formula_units_Z [2]
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  0.2500  0.2500  0.0000  1
  Na  Na1  2  0.0000  0.0000  0.0000  1
  Np  Np2  4  0.2500  0.2500  0.5000  1
  Np  Np3  2  0.0000  0.5000  0.5000  1
  Ga  Ga4  2  0.0000  0.0000  0.5000  1
  N  N5  8  0.0276  0.2486  0.3284  1
  N  N6  4  0.2294  0.5000  0.6862  1
  N  N7  4  0.2442  0.0000  0.6865  1
]