The crystal structure described by Au3Ag is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded to four equivalent Au(1), four equivalent Au(2), and four equivalent Ag(1) atoms to form distorted AuAg4Au8 cuboctahedra that share corners with twelve equivalent Au(1)Ag4Au8 cuboctahedra, edges with eight equivalent Au(1)Ag4Au8 cuboctahedra, edges with eight equivalent Au(2)Ag4Au8 cuboctahedra, edges with eight equivalent Ag(1)Au12 cuboctahedra, faces with four equivalent Au(2)Ag4Au8 cuboctahedra, faces with four equivalent Ag(1)Au12 cuboctahedra, and faces with ten equivalent Au(1)Ag4Au8 cuboctahedra. In the second Au site, Au(2) is bonded to eight equivalent Au(1) and four equivalent Ag(1) atoms to form distorted AuAg4Au8 cuboctahedra that share corners with four equivalent Au(2)Ag4Au8 cuboctahedra, corners with eight equivalent Ag(1)Au12 cuboctahedra, edges with eight equivalent Au(2)Ag4Au8 cuboctahedra, edges with sixteen equivalent Au(1)Ag4Au8 cuboctahedra, faces with four equivalent Au(2)Ag4Au8 cuboctahedra, faces with six equivalent Ag(1)Au12 cuboctahedra, and faces with eight equivalent Au(1)Ag4Au8 cuboctahedra. Ag(1) is bonded to four equivalent Au(2) and eight equivalent Au(1) atoms to form AgAu12 cuboctahedra that share corners with four equivalent Ag(1)Au12 cuboctahedra, corners with eight equivalent Au(2)Ag4Au8 cuboctahedra, edges with eight equivalent Ag(1)Au12 cuboctahedra, edges with sixteen equivalent Au(1)Ag4Au8 cuboctahedra, faces with four equivalent Ag(1)Au12 cuboctahedra, faces with six equivalent Au(2)Ag4Au8 cuboctahedra, and faces with eight equivalent Au(1)Ag4Au8 cuboctahedra. is represented by the CIF card [CIF]
data_AgAu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.068
_cell_length_b   5.068
_cell_length_c   5.068
_cell_angle_alpha   132.219
_cell_angle_beta   132.219
_cell_angle_gamma   69.883
_symmetry_Int_Tables_number   1
_cell_volume   70.004
_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
  Ag  Ag0  1  0.000  0.000  0.000  1.0
  Au  Au1  1  0.750  0.250  0.500  1.0
  Au  Au2  1  0.250  0.750  0.500  1.0
  Au  Au3  1  0.500  0.500  0.000  1.0
[/CIF]
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The crystal structure described by Au3Ag is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded to four equivalent Au(1), four equivalent Au(2), and four equivalent Ag(1) atoms to form distorted AuAg4Au8 cuboctahedra that share corners with twelve equivalent Au(1)Ag4Au8 cuboctahedra, edges with eight equivalent Au(1)Ag4Au8 cuboctahedra, edges with eight equivalent Au(2)Ag4Au8 cuboctahedra, edges with eight equivalent Ag(1)Au12 cuboctahedra, faces with four equivalent Au(2)Ag4Au8 cuboctahedra, faces with four equivalent Ag(1)Au12 cuboctahedra, and faces with ten equivalent Au(1)Ag4Au8 cuboctahedra. In the second Au site, Au(2) is bonded to eight equivalent Au(1) and four equivalent Ag(1) atoms to form distorted AuAg4Au8 cuboctahedra that share corners with four equivalent Au(2)Ag4Au8 cuboctahedra, corners with eight equivalent Ag(1)Au12 cuboctahedra, edges with eight equivalent Au(2)Ag4Au8 cuboctahedra, edges with sixteen equivalent Au(1)Ag4Au8 cuboctahedra, faces with four equivalent Au(2)Ag4Au8 cuboctahedra, faces with six equivalent Ag(1)Au12 cuboctahedra, and faces with eight equivalent Au(1)Ag4Au8 cuboctahedra. Ag(1) is bonded to four equivalent Au(2) and eight equivalent Au(1) atoms to form AgAu12 cuboctahedra that share corners with four equivalent Ag(1)Au12 cuboctahedra, corners with eight equivalent Au(2)Ag4Au8 cuboctahedra, edges with eight equivalent Ag(1)Au12 cuboctahedra, edges with sixteen equivalent Au(1)Ag4Au8 cuboctahedra, faces with four equivalent Ag(1)Au12 cuboctahedra, faces with six equivalent Au(2)Ag4Au8 cuboctahedra, and faces with eight equivalent Au(1)Ag4Au8 cuboctahedra. is represented by the CIF card [CIF]
data_AgAu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.068
_cell_length_b   5.068
_cell_length_c   5.068
_cell_angle_alpha   132.219
_cell_angle_beta   132.219
_cell_angle_gamma   69.883
_symmetry_Int_Tables_number   1
_cell_volume   70.004
_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
  Ag  Ag0  1  0.000  0.000  0.000  1.0
  Au  Au1  1  0.750  0.250  0.500  1.0
  Au  Au2  1  0.250  0.750  0.500  1.0
  Au  Au3  1  0.500  0.500  0.000  1.0
[/CIF]
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