data_OF
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.62
_cell_length_b   2.62
_cell_length_c   6.47
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   OF
_chemical_formula_sum   'O2 F2'
_cell_volume   38.39
_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
  O  O2  1  0.31  0.76  0.13  1.0
  O  O3  1  0.0  0.51  0.9  1.0
  F  F0  1  0.31  0.76  0.76  1.0
  F  F1  1  0.0  0.51  0.53  1.0

data_OF
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.62
_cell_length_b   2.62
_cell_length_c   6.47
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   OF
_chemical_formula_sum   'O2 F2'
_cell_volume   38.39
_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
  O  O0  1  0.0  0.51  0.9  1.0
  O  O1  1  0.31  0.76  0.13  1.0
  F  F2  1  0.0  0.51  0.53  1.0
  F  F3  1  0.31  0.76  0.76  1.0

O O F F
O O F F 0 1 o o - 1 2 o o o 2 3 o o o 