data_[Ac4Re8Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Re  1.9000  1.3500  0.7125
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [4.2119]
_cell_length_b [4.3186]
_cell_length_c [21.4534]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Ac(ReSi)2]
_chemical_formula_sum '[Ac4 Re8 Si8]'
_cell_volume [390.2331]
_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  0.2500  0.1618  1
  Re  Re1  4  0.0000  0.2500  0.4626  1
  Si  Si2  4  0.0000  0.2500  0.6005  1
  Si  Si3  4  0.0000  0.2500  0.7214  1
  Re  Re4  4  0.0000  0.2500  0.9656  1
]