data_[Ac6U3Si9Ir36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  U  1.3800  1.7500  0.9913
  Si  1.9000  1.1000  0.5400
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [8.0929]
_cell_length_b [8.0929]
_cell_length_c [18.9767]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Ac2U(SiIr4)3]
_chemical_formula_sum '[Ac6 U3 Si9 Ir36]'
_cell_volume [1076.3620]
_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  0.3919  1
  U  U1  3  0.0000  0.0000  0.0000  1
  Si  Si2  9  0.0000  0.5000  0.5000  1
  Ir  Ir3  18  0.0128  0.5064  0.3743  1
  Ir  Ir4  18  0.0275  0.5137  0.8688  1
]