data_[Ac4H4Se4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  H  2.2000  0.2500  0.0000
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.7509]
_cell_length_b [11.0330]
_cell_length_c [4.7188]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.7735]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [AcHSeO5]
_chemical_formula_sum '[Ac4 H4 Se4 O20]'
_cell_volume [399.8170]
_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
[
  Ac  Ac0  4  0.0000  0.1939  0.2500  1
  H  H1  4  0.0000  0.0000  0.0000  1
  Se  Se2  4  0.0000  0.4271  0.7500  1
  O  O3  8  0.1262  0.4418  0.1027  1
  O  O4  8  0.1512  0.3173  0.6714  1
  O  O5  4  0.0000  0.0323  0.7500  1
]