data_[Ac2Sn8Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Sn  1.9600  1.4500  0.8300
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [P4_2/mnm]
_cell_length_a [8.7232]
_cell_length_b [8.7232]
_cell_length_c [4.3563]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [136]
_chemical_formula_structural [Ac(Sn2Ir)2]
_chemical_formula_sum '[Ac2 Sn8 Ir4]'
_cell_volume [331.4942]
_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  0.5000  1
  Sn  Sn1  8  0.0789  0.3207  0.0000  1
  Ir  Ir2  4  0.2152  0.7848  0.0000  1
]