data_[Zr2Np2N2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zr  1.3300  1.5500  0.8600
  Np  1.3600  1.7500  1.0000
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4/nmm]
_cell_length_a [4.4245]
_cell_length_b [4.4245]
_cell_length_c [6.4778]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [129]
_chemical_formula_structural [ZrNpNO]
_chemical_formula_sum '[Zr2 Np2 N2 O2]'
_cell_volume [126.8109]
_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
[
  Zr  Zr0  2  0.0000  0.5000  0.0342  1
  Np  Np1  2  0.0000  0.0000  0.5000  1
  N  N2  2  0.0000  0.5000  0.3484  1
  O  O3  2  0.0000  0.0000  0.0000  1
]