data_[Ac4Si12Pt20]
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
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.9859]
_cell_length_b [12.5969]
_cell_length_c [12.8725]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [AcSi3Pt5]
_chemical_formula_sum '[Ac4 Si12 Pt20]'
_cell_volume [646.3323]
_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  0.1586  0.2500  1
  Si  Si1  8  0.0000  0.3853  0.5354  1
  Si  Si2  4  0.0000  0.1144  0.7500  1
  Pt  Pt3  8  0.0000  0.2082  0.5805  1
  Pt  Pt4  8  0.0000  0.4523  0.1456  1
  Pt  Pt5  4  0.0000  0.0000  0.0000  1
]