data_SnAu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.67
_cell_length_b   7.67
_cell_length_c   4.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   153.17
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SnAu2
_chemical_formula_sum   'Sn2 Au4'
_cell_volume   123.45
_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
  Sn  Sn4  1  0.78  0.84  0.16  1.0
  Sn  Sn5  1  0.78  0.16  0.49  1.0
  Au  Au0  1  0.78  0.91  0.16  1.0
  Au  Au1  1  0.78  0.09  0.49  1.0
  Au  Au2  1  0.78  0.9  0.16  1.0
  Au  Au3  1  0.78  0.1  0.49  1.0

data_SnAu2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.56
_cell_length_b   4.66
_cell_length_c   7.67
_cell_angle_alpha   90.0
_cell_angle_beta   103.41
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   SnAu2
_chemical_formula_sum   'Sn2 Au4'
_cell_volume   123.45
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Sn  Sn0  2  0.16  0.34  0.16  1.0
  Au  Au1  2  0.09  0.34  0.09  1.0
  Au  Au2  2  0.1  0.34  0.1  1.0

Sn Sn Au Au Au Au
Au2Sn is Cyanogen Chloride-derived structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Au2Sn clusters. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a single-bond geometry to one Au(2) atom. The Au(1)-Au(2) bond length is 0.10 Å. In the second Au site, Au(2) is bonded in a linear geometry to one Au(1) and one Sn(1) atom. The Au(2)-Sn(1) bond length is 0.42 Å. Sn(1) is bonded in a single-bond geometry to one Au(2) atom.