data_SnAu2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.01
_cell_length_b   3.01
_cell_length_c   9.83
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.39
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SnAu2Se
_chemical_formula_sum   'Sn1 Au2 Se1'
_cell_volume   84.26
_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
  Sn  Sn3  1  0.0  0.0  0.92  1.0
  Au  Au0  1  0.74  0.0  0.38  1.0
  Au  Au1  1  0.74  0.0  0.46  1.0
  Se  Se2  1  0.0  0.0  0.0  1.0

data_SnAu2Se
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.01
_cell_length_b   3.01
_cell_length_c   9.83
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.39
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SnAu2Se
_chemical_formula_sum   'Sn1 Au2 Se1'
_cell_volume   84.26
_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
  Sn  Sn0  1  0.0  0.0  0.92  1.0
  Au  Au1  1  0.74  0.0  0.38  1.0
  Au  Au2  1  0.74  0.0  0.46  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

Sn Au Au Se
(Au)2SnSe is beta oxygen-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one tin selenide molecule and one Au cluster. In the Au cluster, 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 0.80 Å. In the second Au site, Au(2) is bonded in a single-bond geometry to one Au(1) atom.