data_[Ce4Np2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Np  1.3600  1.7500  1.0000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.7646]
_cell_length_b [3.8102]
_cell_length_c [6.6223]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.5733]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ce2NpO8]
_chemical_formula_sum '[Ce4 Np2 O16]'
_cell_volume [319.2681]
_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
[
  Ce  Ce0  4  0.2459  0.5000  0.7360  1
  Np  Np1  2  0.0000  0.5000  0.0000  1
  O  O2  4  0.0446  0.5000  0.7457  1
  O  O3  4  0.0714  0.0000  0.1420  1
  O  O4  4  0.1842  0.5000  0.0600  1
  O  O5  4  0.1943  0.0000  0.5733  1
]