data_N2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.94
_cell_length_b   4.94
_cell_length_c   3.34
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   N2O
_chemical_formula_sum   'N4 O2'
_cell_volume   81.46
_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
  N  N0  1  0.84  0.84  0.0  1.0
  N  N1  1  0.09  0.09  0.0  1.0
  N  N2  1  0.31  0.62  0.67  1.0
  N  N3  1  0.62  0.31  0.67  1.0
  O  O4  1  0.0  0.0  0.0  1.0
  O  O5  1  0.47  0.47  0.67  1.0

data_N2O
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.98
_cell_length_b   6.98
_cell_length_c   3.34
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   N2O
_chemical_formula_sum   'N8 O4'
_cell_volume   162.93
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  N  N0  4  0.47  0.16  0.67  1.0
  N  N1  2  0.09  0.0  0.0  1.0
  N  N2  2  0.34  0.5  0.0  1.0
  O  O3  2  0.0  0.0  0.0  1.0
  O  O4  2  0.47  0.0  0.67  1.0

N N N N O O
N N N N O O 0 4 + + o 1 4 o o o 2 5 o o o 3 5 o o o 