data_[Ac6Cd18Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Cd  1.6900  1.5500  1.0900
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.9518]
_cell_length_b [10.5349]
_cell_length_c [13.7185]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Ac3Cd9Cu2]
_chemical_formula_sum '[Ac6 Cd18 Cu4]'
_cell_volume [715.6554]
_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  0.0000  0.0000  0.3091  1
  Ac  Ac1  2  0.0000  0.0000  0.0000  1
  Cd  Cd2  8  0.0000  0.2810  0.1256  1
  Cd  Cd3  8  0.0000  0.3600  0.3412  1
  Cd  Cd4  2  0.0000  0.5000  0.0000  1
  Cu  Cu5  4  0.0000  0.1991  0.5000  1
]