data_[Se4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_12_12_1]
_cell_length_a [4.4424]
_cell_length_b [5.5781]
_cell_length_c [8.1278]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [SeO2]
_chemical_formula_sum '[Se4 O8]'
_cell_volume [201.4086]
_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
[
  Se  Se0  4  0.1376  0.9092  0.1008  1.0
  O  O1  4  0.1644  0.7886  0.2847  1.0
  O  O2  4  0.2490  0.3502  0.4613  1.0
]