data_[Np2I1Cl1O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  I  2.6600  1.4000  1.2733
  Cl  3.1600  1.0000  0.7800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [4.0262]
_cell_length_b [4.0262]
_cell_length_c [8.2562]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [Np2IClO2]
_chemical_formula_sum '[Np2 I1 Cl1 O2]'
_cell_volume [133.8372]
_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
[
  Np  Np0  1  0.0000  0.0000  0.1363  1
  Np  Np1  1  0.5000  0.5000  0.8327  1
  I  I2  1  0.5000  0.5000  0.3727  1
  Cl  Cl3  1  0.0000  0.0000  0.6777  1
  O  O4  2  0.0000  0.5000  0.9903  1
]