data_[Pu12Np4O28]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pu  1.2800  1.7500  0.9675
  Np  1.3600  1.7500  1.0000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [7.6558]
_cell_length_b [10.9331]
_cell_length_c [7.7733]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pu3NpO7]
_chemical_formula_sum '[Pu12 Np4 O28]'
_cell_volume [650.6354]
_cell_formula_units_Z [4]
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
[
  Pu  Pu0  8  0.2365  0.2389  0.2500  1
  Pu  Pu1  4  0.0000  0.5000  0.0000  1
  Np  Np2  4  0.0000  0.0000  0.0000  1
  O  O3  16  0.2198  0.1255  0.5261  1
  O  O4  4  0.0000  0.0926  0.2500  1
  O  O5  4  0.0000  0.3648  0.2500  1
  O  O6  4  0.0000  0.3680  0.7500  1
]