data_AlSiAu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.6
_cell_length_b   3.74
_cell_length_c   5.19
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlSiAu2
_chemical_formula_sum   'Al1 Si1 Au2'
_cell_volume   69.96
_cell_formula_units_Z   1
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
  Al  Al0  1  0.0  0.0  0.12  1.0
  Si  Si3  1  0.8  0.87  0.35  1.0
  Au  Au1  1  0.8  0.87  0.91  1.0
  Au  Au2  1  0.0  0.0  0.6  1.0

data_AlSiAu2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.6
_cell_length_b   3.74
_cell_length_c   5.19
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlSiAu2
_chemical_formula_sum   'Al1 Si1 Au2'
_cell_volume   69.96
_cell_formula_units_Z   1
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
  Al  Al0  1  0.0  0.0  0.12  1.0
  Si  Si1  1  0.8  0.87  0.35  1.0
  Au  Au2  1  0.0  0.0  0.6  1.0
  Au  Au3  1  0.8  0.87  0.91  1.0

Al Si Au Au
Au2AlSi is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Au2AlSi cluster. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a single-bond geometry to one Al(1) atom. The Au(1)-Al(1) bond length is 1.40 Å. In the second Au site, Au(2) is bonded in a distorted single-bond geometry to one Si(1) atom. The Au(2)-Si(1) bond length is 1.54 Å. Al(1) is bonded in a distorted water-like geometry to one Au(1) and one Si(1) atom. The Al(1)-Si(1) bond length is 1.50 Å. Si(1) is bonded in a water-like geometry to one Au(2) and one Al(1) atom.