data_[Ac8Si16Ag8]
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
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [14.3139]
_cell_length_b [4.4309]
_cell_length_c [11.1963]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [AcSi2Ag]
_chemical_formula_sum '[Ac8 Si16 Ag8]'
_cell_volume [710.1042]
_cell_formula_units_Z [8]
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  0.0531  0.2500  0.7505  1
  Ac  Ac1  4  0.1987  0.7500  0.0184  1
  Si  Si2  4  0.0269  0.2500  0.0348  1
  Si  Si3  4  0.1126  0.2500  0.2164  1
  Si  Si4  4  0.1293  0.7500  0.5382  1
  Si  Si5  4  0.2173  0.7500  0.7189  1
  Ag  Ag6  4  0.0583  0.2500  0.4414  1
  Ag  Ag7  4  0.1987  0.7500  0.3198  1
]