The material described by Au12In3Sn is beta Cu3Ti-derived structured and crystallizes in the orthorhombic Pmm2 space group. There are seven inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted see-saw-like geometry to four equivalent Au(5), four equivalent Au(7), two equivalent In(2), and two equivalent Sn(1) atoms. In the second Au site, Au(2) is bonded in a distorted see-saw-like geometry to four equivalent Au(4), four equivalent Au(6), two equivalent In(1), and two equivalent In(2) atoms. In the third Au site, Au(3) is bonded in a distorted see-saw-like geometry to two equivalent Au(4), two equivalent Au(5), two equivalent Au(6), two equivalent Au(7), one In(1), two equivalent In(2), and one Sn(1) atom. In the fourth Au site, Au(4) is bonded to one Au(4), one Au(5), two equivalent Au(2), two equivalent Au(3), two equivalent Au(6), two equivalent In(1), and two equivalent In(2) atoms to form distorted AuIn4Au8 cuboctahedra that share corners with four equivalent Au(4)In4Au8 cuboctahedra, corners with four equivalent In(1)Au12 cuboctahedra, corners with six equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra,  a faceface with one Au(5)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(7)In2Sn2Au8 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with three equivalent Au(4)In4Au8 cuboctahedra, and faces with six equivalent Au(6)In4Au8 cuboctahedra. In the fifth Au site, Au(5) is bonded to one Au(4), one Au(5), two equivalent Au(1), two equivalent Au(3), two equivalent Au(7), two equivalent In(2), and two equivalent Sn(1) atoms to form distorted AuIn2Sn2Au8 cuboctahedra that share corners with four equivalent Au(5)In2Sn2Au8 cuboctahedra, corners with four equivalent Sn(1)Au12 cuboctahedra, corners with six equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra,  a faceface with one Au(4)In4Au8 cuboctahedra, faces with two equivalent Au(6)In4Au8 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with two equivalent Sn(1)Au12 cuboctahedra, faces with three equivalent Au(5)In2Sn2Au8 cuboctahedra, and faces with six equivalent Au(7)In2Sn2Au8 cuboctahedra. In the sixth Au site, Au(6) is bonded to one Au(6), one Au(7), two equivalent Au(2), two equivalent Au(3), two equivalent Au(4), two equivalent In(1), and two equivalent In(2) atoms to form distorted AuIn4Au8 cuboctahedra that share corners with four equivalent Au(6)In4Au8 cuboctahedra, corners with four equivalent In(2)Au12 cuboctahedra, corners with six equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with two equivalent In(2)Au12 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra,  a faceface with one Au(7)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(5)In2Sn2Au8 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with three equivalent Au(6)In4Au8 cuboctahedra, and faces with six equivalent Au(4)In4Au8 cuboctahedra. In the seventh Au site, Au(7) is bonded to one Au(6), one Au(7), two equivalent Au(1), two equivalent Au(3), two equivalent Au(5), two equivalent In(2), and two equivalent Sn(1) atoms to form distorted AuIn2Sn2Au8 cuboctahedra that share corners with four equivalent Au(7)In2Sn2Au8 cuboctahedra, corners with four equivalent In(2)Au12 cuboctahedra, corners with six equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with two equivalent In(2)Au12 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra,  a faceface with one Au(6)In4Au8 cuboctahedra, faces with two equivalent Au(4)In4Au8 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with two equivalent Sn(1)Au12 cuboctahedra, faces with three equivalent Au(7)In2Sn2Au8 cuboctahedra, and faces with six equivalent Au(5)In2Sn2Au8 cuboctahedra. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Au(2), two equivalent Au(3), four equivalent Au(4), and four equivalent Au(6) atoms to form InAu12 cuboctahedra that share corners with two equivalent Sn(1)Au12 cuboctahedra, corners with eight equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with four equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(6)In4Au8 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with four equivalent Au(4)In4Au8 cuboctahedra, faces with four equivalent Au(6)In4Au8 cuboctahedra, and faces with four equivalent In(2)Au12 cuboctahedra. In the second In site, In(2) is bonded to one Au(1), one Au(2), two equivalent Au(3), two equivalent Au(4), two equivalent Au(5), two equivalent Au(6), and two equivalent Au(7) atoms to form InAu12 cuboctahedra that share corners with two equivalent In(2)Au12 cuboctahedra, corners with four equivalent Au(7)In2Sn2Au8 cuboctahedra, corners with four equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with two equivalent In(2)Au12 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra, edges with four equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(4)In4Au8 cuboctahedra, faces with two equivalent Au(5)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(7)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(4)In4Au8 cuboctahedra, faces with two equivalent Au(6)In4Au8 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, and faces with two equivalent Sn(1)Au12 cuboctahedra. Sn(1) is bonded to two equivalent Au(1), two equivalent Au(3), four equivalent Au(5), and four equivalent Au(7) atoms to form SnAu12 cuboctahedra that share corners with two equivalent In(1)Au12 cuboctahedra, corners with eight equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra, edges with four equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(4)In4Au8 cuboctahedra, edges with four equivalent Au(6)In4Au8 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra, faces with two equivalent Sn(1)Au12 cuboctahedra, faces with four equivalent Au(5)In2Sn2Au8 cuboctahedra, faces with four equivalent Au(7)In2Sn2Au8 cuboctahedra, and faces with four equivalent In(2)Au12 cuboctahedra. is represented by the CIF file [CIF]
data_In3SnAu12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.902
_cell_length_b   5.360
_cell_length_c   11.743
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   308.552
_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
  In  In0  1  0.500  0.668  0.500  1.0
  In  In1  1  0.000  0.334  0.749  1.0
  In  In2  1  0.000  0.334  0.251  1.0
  Sn  Sn3  1  0.500  0.666  0.000  1.0
  Au  Au4  1  0.000  0.327  0.000  1.0
  Au  Au5  1  0.000  0.333  0.500  1.0
  Au  Au6  1  0.500  0.668  0.747  1.0
  Au  Au7  1  0.500  0.668  0.253  1.0
  Au  Au8  1  0.500  0.166  0.626  1.0
  Au  Au9  1  0.500  0.166  0.128  1.0
  Au  Au10  1  0.500  0.166  0.872  1.0
  Au  Au11  1  0.500  0.166  0.374  1.0
  Au  Au12  1  0.000  0.835  0.624  1.0
  Au  Au13  1  0.000  0.835  0.125  1.0
  Au  Au14  1  0.000  0.835  0.875  1.0
  Au  Au15  1  0.000  0.835  0.376  1.0
[/CIF]
.
The material described by Au12In3Sn is beta Cu3Ti-derived structured and crystallizes in the orthorhombic Pmm2 space group. There are seven inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted see-saw-like geometry to four equivalent Au(5), four equivalent Au(7), two equivalent In(2), and two equivalent Sn(1) atoms. In the second Au site, Au(2) is bonded in a distorted see-saw-like geometry to four equivalent Au(4), four equivalent Au(6), two equivalent In(1), and two equivalent In(2) atoms. In the third Au site, Au(3) is bonded in a distorted see-saw-like geometry to two equivalent Au(4), two equivalent Au(5), two equivalent Au(6), two equivalent Au(7), one In(1), two equivalent In(2), and one Sn(1) atom. In the fourth Au site, Au(4) is bonded to one Au(4), one Au(5), two equivalent Au(2), two equivalent Au(3), two equivalent Au(6), two equivalent In(1), and two equivalent In(2) atoms to form distorted AuIn4Au8 cuboctahedra that share corners with four equivalent Au(4)In4Au8 cuboctahedra, corners with four equivalent In(1)Au12 cuboctahedra, corners with six equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra,  a faceface with one Au(5)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(7)In2Sn2Au8 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with three equivalent Au(4)In4Au8 cuboctahedra, and faces with six equivalent Au(6)In4Au8 cuboctahedra. In the fifth Au site, Au(5) is bonded to one Au(4), one Au(5), two equivalent Au(1), two equivalent Au(3), two equivalent Au(7), two equivalent In(2), and two equivalent Sn(1) atoms to form distorted AuIn2Sn2Au8 cuboctahedra that share corners with four equivalent Au(5)In2Sn2Au8 cuboctahedra, corners with four equivalent Sn(1)Au12 cuboctahedra, corners with six equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra,  a faceface with one Au(4)In4Au8 cuboctahedra, faces with two equivalent Au(6)In4Au8 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with two equivalent Sn(1)Au12 cuboctahedra, faces with three equivalent Au(5)In2Sn2Au8 cuboctahedra, and faces with six equivalent Au(7)In2Sn2Au8 cuboctahedra. In the sixth Au site, Au(6) is bonded to one Au(6), one Au(7), two equivalent Au(2), two equivalent Au(3), two equivalent Au(4), two equivalent In(1), and two equivalent In(2) atoms to form distorted AuIn4Au8 cuboctahedra that share corners with four equivalent Au(6)In4Au8 cuboctahedra, corners with four equivalent In(2)Au12 cuboctahedra, corners with six equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with two equivalent In(2)Au12 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra,  a faceface with one Au(7)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(5)In2Sn2Au8 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with three equivalent Au(6)In4Au8 cuboctahedra, and faces with six equivalent Au(4)In4Au8 cuboctahedra. In the seventh Au site, Au(7) is bonded to one Au(6), one Au(7), two equivalent Au(1), two equivalent Au(3), two equivalent Au(5), two equivalent In(2), and two equivalent Sn(1) atoms to form distorted AuIn2Sn2Au8 cuboctahedra that share corners with four equivalent Au(7)In2Sn2Au8 cuboctahedra, corners with four equivalent In(2)Au12 cuboctahedra, corners with six equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with two equivalent In(2)Au12 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra,  a faceface with one Au(6)In4Au8 cuboctahedra, faces with two equivalent Au(4)In4Au8 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, faces with two equivalent Sn(1)Au12 cuboctahedra, faces with three equivalent Au(7)In2Sn2Au8 cuboctahedra, and faces with six equivalent Au(5)In2Sn2Au8 cuboctahedra. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Au(2), two equivalent Au(3), four equivalent Au(4), and four equivalent Au(6) atoms to form InAu12 cuboctahedra that share corners with two equivalent Sn(1)Au12 cuboctahedra, corners with eight equivalent Au(4)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with four equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(6)In4Au8 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with four equivalent Au(4)In4Au8 cuboctahedra, faces with four equivalent Au(6)In4Au8 cuboctahedra, and faces with four equivalent In(2)Au12 cuboctahedra. In the second In site, In(2) is bonded to one Au(1), one Au(2), two equivalent Au(3), two equivalent Au(4), two equivalent Au(5), two equivalent Au(6), and two equivalent Au(7) atoms to form InAu12 cuboctahedra that share corners with two equivalent In(2)Au12 cuboctahedra, corners with four equivalent Au(7)In2Sn2Au8 cuboctahedra, corners with four equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with two equivalent Au(6)In4Au8 cuboctahedra, edges with two equivalent In(1)Au12 cuboctahedra, edges with two equivalent In(2)Au12 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra, edges with four equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(4)In4Au8 cuboctahedra, faces with two equivalent Au(5)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(7)In2Sn2Au8 cuboctahedra, faces with two equivalent Au(4)In4Au8 cuboctahedra, faces with two equivalent Au(6)In4Au8 cuboctahedra, faces with two equivalent In(1)Au12 cuboctahedra, faces with two equivalent In(2)Au12 cuboctahedra, and faces with two equivalent Sn(1)Au12 cuboctahedra. Sn(1) is bonded to two equivalent Au(1), two equivalent Au(3), four equivalent Au(5), and four equivalent Au(7) atoms to form SnAu12 cuboctahedra that share corners with two equivalent In(1)Au12 cuboctahedra, corners with eight equivalent Au(5)In2Sn2Au8 cuboctahedra, edges with two equivalent Sn(1)Au12 cuboctahedra, edges with four equivalent Au(7)In2Sn2Au8 cuboctahedra, edges with four equivalent Au(4)In4Au8 cuboctahedra, edges with four equivalent Au(6)In4Au8 cuboctahedra, edges with four equivalent In(2)Au12 cuboctahedra, faces with two equivalent Sn(1)Au12 cuboctahedra, faces with four equivalent Au(5)In2Sn2Au8 cuboctahedra, faces with four equivalent Au(7)In2Sn2Au8 cuboctahedra, and faces with four equivalent In(2)Au12 cuboctahedra. is represented by the CIF file [CIF]
data_In3SnAu12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.902
_cell_length_b   5.360
_cell_length_c   11.743
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   308.552
_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
  In  In0  1  0.500  0.668  0.500  1.0
  In  In1  1  0.000  0.334  0.749  1.0
  In  In2  1  0.000  0.334  0.251  1.0
  Sn  Sn3  1  0.500  0.666  0.000  1.0
  Au  Au4  1  0.000  0.327  0.000  1.0
  Au  Au5  1  0.000  0.333  0.500  1.0
  Au  Au6  1  0.500  0.668  0.747  1.0
  Au  Au7  1  0.500  0.668  0.253  1.0
  Au  Au8  1  0.500  0.166  0.626  1.0
  Au  Au9  1  0.500  0.166  0.128  1.0
  Au  Au10  1  0.500  0.166  0.872  1.0
  Au  Au11  1  0.500  0.166  0.374  1.0
  Au  Au12  1  0.000  0.835  0.624  1.0
  Au  Au13  1  0.000  0.835  0.125  1.0
  Au  Au14  1  0.000  0.835  0.875  1.0
  Au  Au15  1  0.000  0.835  0.376  1.0
[/CIF]
.