data_[Se4O16]
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 [5.2446]
_cell_length_b [7.6408]
_cell_length_c [8.6571]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [SeO4]
_chemical_formula_sum '[Se4 O16]'
_cell_volume [346.9143]
_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  0.1938  0.4899  0.9396  1
  O  O1  4  0.0886  0.8845  0.5578  1
  O  O2  4  0.1085  0.5693  0.5893  1
  O  O3  4  0.1126  0.6998  0.9523  1
  O  O4  4  0.1224  0.5588  0.2859  1
]