data_[Ac4Si12Ir4Os4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Si  1.9000  1.1000  0.5400
  Ir  2.2000  1.3500  0.7650
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [6.4908]
_cell_length_b [12.4871]
_cell_length_c [6.0272]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [AcSi3IrOs]
_chemical_formula_sum '[Ac4 Si12 Ir4 Os4]'
_cell_volume [488.5169]
_cell_formula_units_Z [4]
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  0.2314  0.7500  1
  Si  Si1  8  0.2087  0.5000  0.0000  1
  Si  Si2  4  0.0000  0.2154  0.2500  1
  Os  Os3  4  0.0000  0.0377  0.2500  1
  Ir  Ir4  4  0.0000  0.3942  0.2500  1
]