data_[Na2Ac8Cu6O24]
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
  Cu  1.9000  1.3500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Im-3m]
_cell_length_a [7.9524]
_cell_length_b [7.9524]
_cell_length_c [7.9524]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [229]
_chemical_formula_structural [NaAc4(CuO4)3]
_chemical_formula_sum '[Na2 Ac8 Cu6 O24]'
_cell_volume [502.9144]
_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  2  0.0000  0.0000  0.0000  1
  Ac  Ac1  8  0.2500  0.2500  0.2500  1
  Cu  Cu2  6  0.0000  0.0000  0.5000  1
  O  O3  12  0.0000  0.0000  0.2686  1
  O  O4  12  0.0000  0.2500  0.5000  1
]