data_[Ac6Cu45Ag6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [8.8954]
_cell_length_b [8.8954]
_cell_length_c [12.9499]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Ac2Cu15Ag2]
_chemical_formula_sum '[Ac6 Cu45 Ag6]'
_cell_volume [887.4090]
_cell_formula_units_Z [3]
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  6  0.0000  0.0000  0.3456  1
  Cu  Cu1  18  0.0000  0.2913  0.0000  1
  Cu  Cu2  18  0.0010  0.5005  0.8425  1
  Cu  Cu3  9  0.0000  0.5000  0.5000  1
  Ag  Ag4  6  0.0000  0.0000  0.1022  1
]