data_[Ac4Si2Hg4Pt8]
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
  Hg  2.0000  1.5000  1.2450
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [6.8388]
_cell_length_b [6.8388]
_cell_length_c [8.7393]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Ac2Si(HgPt2)2]
_chemical_formula_sum '[Ac4 Si2 Hg4 Pt8]'
_cell_volume [408.7272]
_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  4  0.0000  0.5000  0.2500  1
  Si  Si1  2  0.0000  0.0000  0.0000  1
  Hg  Hg2  4  0.0000  0.0000  0.3219  1
  Pt  Pt3  8  0.2440  0.2440  0.0000  1
]