data_[Ce8U8N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  U  1.3800  1.7500  0.9913
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [11.6200]
_cell_length_b [6.6584]
_cell_length_c [6.6421]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Ce2U2N5]
_chemical_formula_sum '[Ce8 U8 N20]'
_cell_volume [513.9049]
_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
[
  Ce  Ce0  8  0.0000  0.1609  0.6640  1
  U  U1  8  0.2062  0.0000  0.0000  1
  N  N2  16  0.1456  0.1671  0.3620  1
  N  N3  4  0.0000  0.0000  0.0000  1
]