data_SiAg2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.86
_cell_length_b   2.86
_cell_length_c   9.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   110.07
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAg2Au
_chemical_formula_sum   'Si1 Ag2 Au1'
_cell_volume   69.6
_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
  Si  Si3  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.64  0.0  0.15  1.0
  Ag  Ag1  1  0.64  0.0  0.9  1.0
  Au  Au2  1  0.0  0.0  0.53  1.0

data_SiAg2Au
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.86
_cell_length_b   2.86
_cell_length_c   9.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   110.07
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAg2Au
_chemical_formula_sum   'Si1 Ag2 Au1'
_cell_volume   69.6
_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
  Si  Si0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.64  0.0  0.15  1.0
  Ag  Ag2  1  0.64  0.0  0.9  1.0
  Au  Au3  1  0.0  0.0  0.53  1.0

Si Ag Ag Au
Si Ag Ag Au 0 2 - o - 0 1 - o o 3 3 + + o 3 3 o + o 3 3 + o o 
AuAg2Si crystallizes in the triclinic P1 space group. Au(1) is bonded in a 8-coordinate geometry to six equivalent Au(1), one Ag(1), and one Ag(2) atom. There are four shorter (2.86 Å) and two longer (3.28 Å) Au(1)-Au(1) bond lengths. The Au(1)-Ag(1) bond length is 3.52 Å. The Au(1)-Ag(2) bond length is 3.52 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 1-coordinate geometry to one Au(1) and two equivalent Si(1) atoms. There is one shorter (1.74 Å) and one longer (2.30 Å) Ag(1)-Si(1) bond length. In the second Ag site, Ag(2) is bonded in a 2-coordinate geometry to one Au(1) and two equivalent Si(1) atoms. There is one shorter (1.38 Å) and one longer (2.05 Å) Ag(2)-Si(1) bond length. Si(1) is bonded in a 4-coordinate geometry to two equivalent Ag(1) and two equivalent Ag(2) atoms.