data_[Se2N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Se  2.5500  1.1500  1.0133
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [4.4163]
_cell_length_b [3.0566]
_cell_length_c [8.6805]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.0743]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [SeN]
_chemical_formula_sum '[Se2 N2]'
_cell_volume [115.7080]
_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
[
  Se  Se0  2  0.2320  0.0000  0.9355  1.0
  N  N1  2  0.4086  0.5000  0.4468  1.0
]