data_[H4Se8F4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  H  2.2000  0.2500  0.0000
  Se  2.5500  1.1500  1.0133
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [9.2017]
_cell_length_b [9.6859]
_cell_length_c [4.1771]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [HSe2F]
_chemical_formula_sum '[H4 Se8 F4]'
_cell_volume [372.2912]
_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
[
  H  H0  4  0.0000  0.0111  0.1039  1.0
  Se  Se1  8  0.1182  0.3894  0.3929  1.0
  F  F2  4  0.0000  0.0607  0.8934  1.0
]