data_[Ce4Si12N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Si  1.9000  1.1000  0.5400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2_12_12_1]
_cell_length_a [4.8051]
_cell_length_b [7.8581]
_cell_length_c [11.2447]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [CeSi3N5]
_chemical_formula_sum '[Ce4 Si12 N20]'
_cell_volume [424.5884]
_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  4  0.0085  0.0623  0.1682  1
  Si  Si1  4  0.0142  0.1615  0.8391  1
  Si  Si2  4  0.0165  0.2928  0.5835  1
  Si  Si3  4  0.0241  0.4676  0.0415  1
  N  N4  4  0.0406  0.3420  0.9207  1
  N  N5  4  0.1690  0.2072  0.7055  1
  N  N6  4  0.1705  0.3889  0.1685  1
  N  N7  4  0.1849  0.9809  0.9066  1
  N  N8  4  0.2055  0.6494  0.9888  1
]