data_[Li2Np4Fe2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Np  1.3600  1.7500  1.0000
  Fe  1.8300  1.4000  0.8525
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.1434]
_cell_length_b [5.1434]
_cell_length_c [10.4418]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [LiNp2FeO8]
_chemical_formula_sum '[Li2 Np4 Fe2 O16]'
_cell_volume [276.2282]
_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
[
  Li  Li0  2  0.0000  0.0000  0.0000  1
  Np  Np1  2  0.0000  0.0000  0.5000  1
  Np  Np2  2  0.0000  0.5000  0.7500  1
  Fe  Fe3  2  0.0000  0.5000  0.2500  1
  O  O4  8  0.1976  0.2426  0.3414  1
  O  O5  8  0.2060  0.7102  0.9058  1
]