data_[Na1Np1Ag2I6]
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
  Ag  1.9300  1.6000  1.0867
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P312]
_cell_length_a [7.9994]
_cell_length_b [7.9994]
_cell_length_c [18.6472]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [149]
_chemical_formula_structural [NaNp(AgI3)2]
_chemical_formula_sum '[Na1 Np1 Ag2 I6]'
_cell_volume [1033.3908]
_cell_formula_units_Z [1]
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  1  0.6667  0.3333  0.5000  1
  Np  Np1  1  0.0000  0.0000  0.5000  1
  Ag  Ag2  2  0.3333  0.6667  0.5811  1
  I  I3  6  0.3238  0.0085  0.5978  1
]