data_[Ac2Zn8Ir4]
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
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [4.2509]
_cell_length_b [14.5772]
_cell_length_c [4.2470]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Ac(Zn2Ir)2]
_chemical_formula_sum '[Ac2 Zn8 Ir4]'
_cell_volume [263.1708]
_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  2  0.0000  0.0000  0.0000  1
  Zn  Zn1  4  0.0000  0.1937  0.5000  1
  Zn  Zn2  4  0.0000  0.3132  0.0000  1
  Ir  Ir3  4  0.0000  0.4140  0.5000  1
]