data_Si2AgAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.78
_cell_length_b   4.91
_cell_length_c   5.03
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2AgAu
_chemical_formula_sum   'Si2 Ag1 Au1'
_cell_volume   68.67
_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  Si2  1  0.0  0.0  0.0  1.0
  Si  Si3  1  0.39  0.0  0.52  1.0
  Ag  Ag0  1  0.39  0.45  0.0  1.0
  Au  Au1  1  0.0  0.45  0.52  1.0

data_Si2AgAu
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.78
_cell_length_b   4.91
_cell_length_c   5.03
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2AgAu
_chemical_formula_sum   'Si2 Ag1 Au1'
_cell_volume   68.67
_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
  Si  Si1  1  0.39  0.0  0.52  1.0
  Ag  Ag2  1  0.39  0.45  0.0  1.0
  Au  Au3  1  -0.0  0.45  0.52  1.0

Si Si Ag Au
AuAgSi2 crystallizes in the triclinic P1 space group. Au(1) is bonded in a 10-coordinate geometry to two equivalent Au(1), four equivalent Ag(1), and four equivalent Si(2) atoms. Both Au(1)-Au(1) bond lengths are 2.78 Å. There are a spread of Au(1)-Ag(1) bond distances ranging from 2.66-3.11 Å. There are a spread of Au(1)-Si(2) bond distances ranging from 2.48-3.17 Å. Ag(1) is bonded in a 10-coordinate geometry to four equivalent Au(1), two equivalent Ag(1), and four equivalent Si(1) atoms. Both Ag(1)-Ag(1) bond lengths are 2.78 Å. There are a spread of Ag(1)-Si(1) bond distances ranging from 2.48-3.17 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 1-coordinate geometry to four equivalent Ag(1) atoms. In the second Si site, Si(2) is bonded in a 3-coordinate geometry to four equivalent Au(1) atoms.