data_[Ce8Sm4Sn4N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Sm  1.1700  1.8500  1.2290
  Sn  1.9600  1.4500  0.8300
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.5605]
_cell_length_b [14.1090]
_cell_length_c [11.3642]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ce2SmSnN5]
_chemical_formula_sum '[Ce8 Sm4 Sn4 N20]'
_cell_volume [570.8849]
_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  0.1384  0.5080  1
  Sm  Sm1  4  0.0000  0.2712  0.7500  1
  Sn  Sn2  4  0.0000  0.4912  0.2500  1
  N  N3  8  0.0000  0.2716  0.1003  1
  N  N4  8  0.0000  0.4111  0.6102  1
  N  N5  4  0.0000  0.0887  0.7500  1
]