data_[Ce6U3Cr6N18]
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
  Cr  1.6600  1.4000  0.9400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.5906]
_cell_length_b [5.5906]
_cell_length_c [17.2228]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Ce2U(CrN3)2]
_chemical_formula_sum '[Ce6 U3 Cr6 N18]'
_cell_volume [466.1740]
_cell_formula_units_Z [3]
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  6  0.0000  0.0000  0.2094  1
  U  U1  3  0.0000  0.0000  0.0000  1
  Cr  Cr2  6  0.0000  0.0000  0.3992  1
  N  N3  18  0.0119  0.5060  0.7595  1
]