data_[Ce8As4Se2N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.2277]
_cell_length_b [3.9373]
_cell_length_c [7.3504]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.0823]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ce4As2SeN2]
_chemical_formula_sum '[Ce8 As4 Se2 N4]'
_cell_volume [402.3425]
_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  0.0275  0.5000  0.7391  1
  Ce  Ce1  4  0.2207  0.0000  0.1758  1
  As  As2  4  0.1284  0.0000  0.5414  1
  Se  Se3  2  0.0000  0.0000  0.0000  1
  N  N4  4  0.1753  0.5000  0.9818  1
]