data_Cl2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.24
_cell_length_b   6.24
_cell_length_c   3.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cl2O
_chemical_formula_sum   'Cl4 O2'
_cell_volume   116.59
_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
  Cl  Cl0  1  0.08  0.08  0.0  1.0
  Cl  Cl1  1  0.16  0.16  0.0  1.0
  Cl  Cl2  1  0.19  0.04  0.5  1.0
  Cl  Cl3  1  0.04  0.19  0.5  1.0
  O  O4  1  0.0  0.0  0.0  1.0
  O  O5  1  0.12  0.12  0.5  1.0

data_Cl2O
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   3.0
_cell_length_b   8.82
_cell_length_c   8.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   Cl2O
_chemical_formula_sum   'Cl8 O4'
_cell_volume   233.18
_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, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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
  Cl  Cl0  4  0.5  0.08  0.12  1.0
  Cl  Cl1  2  0.0  0.0  0.08  1.0
  Cl  Cl2  2  0.0  0.0  0.16  1.0
  O  O3  2  0.0  0.0  0.0  1.0
  O  O4  2  0.5  0.0  0.12  1.0

Cl Cl Cl Cl O O