data_[Ac6Zn8Cu8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Zn  1.6500  1.3500  0.8800
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [25.5755]
_cell_length_b [4.2850]
_cell_length_c [4.5286]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.6343]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac3(ZnCu)4]
_chemical_formula_sum '[Ac6 Zn8 Cu8]'
_cell_volume [491.8913]
_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
[
  Ac  Ac0  4  0.1544  0.0000  0.1371  1
  Ac  Ac1  2  0.0000  0.0000  0.5000  1
  Zn  Zn2  4  0.0539  0.5000  0.0418  1
  Zn  Zn3  4  0.2022  0.5000  0.6554  1
  Cu  Cu4  4  0.1030  0.5000  0.5816  1
  Cu  Cu5  4  0.2464  0.5000  0.1862  1
]