data_[Na10Ac2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ac  1.1000  1.9500  1.2600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.7115]
_cell_length_b [3.7943]
_cell_length_c [6.4742]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.5883]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na5AcO4]
_chemical_formula_sum '[Na10 Ac2 O8]'
_cell_volume [305.8987]
_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
[
  Na  Na0  4  0.1670  0.0000  0.5401  1
  Na  Na1  4  0.2291  0.0000  0.1597  1
  Na  Na2  2  0.0000  0.5000  0.5000  1
  Ac  Ac3  2  0.0000  0.5000  0.0000  1
  O  O4  4  0.0993  0.0000  0.8441  1
  O  O5  4  0.1464  0.5000  0.3262  1
]