data_OsAu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.98
_cell_length_b   7.98
_cell_length_c   4.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   159.98
_symmetry_Int_Tables_number   1
_chemical_formula_structural   OsAu2
_chemical_formula_sum   'Os2 Au4'
_cell_volume   100.97
_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
  Os  Os4  1  0.39  0.38  0.16  1.0
  Os  Os5  1  0.39  0.62  0.48  1.0
  Au  Au0  1  0.39  0.54  0.16  1.0
  Au  Au1  1  0.39  0.05  0.48  1.0
  Au  Au2  1  0.39  0.95  0.16  1.0
  Au  Au3  1  0.39  0.46  0.48  1.0

data_OsAu2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.77
_cell_length_b   4.63
_cell_length_c   7.98
_cell_angle_alpha   90.0
_cell_angle_beta   100.01
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   OsAu2
_chemical_formula_sum   'Os2 Au4'
_cell_volume   100.97
_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
  Os  Os0  2  0.38  0.66  0.88  1.0
  Au  Au1  2  0.05  0.34  0.55  1.0
  Au  Au2  2  0.46  0.34  0.96  1.0

Os Os Au Au Au Au
Os Os Au Au Au Au 0 5 o o o 0 2 o o o 1 2 o o o 1 5 o o o 2 5 o o o 3 4 o - o 
OsAuAu crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one Au cluster and one OsAu cluster. In the Au cluster, Au(2) is bonded in a distorted single-bond geometry to one Au(2) atom. The Au(2)-Au(2) bond length is 1.66 Å. In the OsAu cluster, Os(1) is bonded in a 2-coordinate geometry to two equivalent Au(1) atoms. There is one shorter (1.34 Å) and one longer (1.60 Å) Os(1)-Au(1) bond length. Au(1) is bonded in a 2-coordinate geometry to two equivalent Os(1) atoms.