data_[H16Se8N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  H  2.2000  0.2500  0.0000
  Se  2.5500  1.1500  1.0133
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [5.5090]
_cell_length_b [5.8716]
_cell_length_c [11.2605]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [H4Se2N]
_chemical_formula_sum '[H16 Se8 N4]'
_cell_volume [364.2386]
_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
[
  H  H0  8  0.0000  0.1400  0.0560  1.0
  H  H1  8  0.1487  0.0000  0.9431  1.0
  Se  Se2  8  0.2500  0.2500  0.2503  1.0
  N  N3  4  0.0000  0.0000  0.9997  1.0
]