YbAuSn crystallizes in the orthorhombic Imm2 space group. There are four inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 12-coordinate geometry to one Au(1), two equivalent Au(3), three equivalent Au(2), one Sn(3), two equivalent Sn(1), and three equivalent Sn(2) atoms. In the second Yb site, Yb(2) is bonded to two equivalent Au(1), four equivalent Au(3), two equivalent Sn(3), and four equivalent Sn(1) atoms to form distorted face-sharing YbSn6Au6 cuboctahedra. In the third Yb site, Yb(3) is bonded in a 12-coordinate geometry to one Au(3), two equivalent Au(1), three equivalent Au(2), one Sn(1), two equivalent Sn(3), and three equivalent Sn(2) atoms. In the fourth Yb site, Yb(4) is bonded to two equivalent Au(3), four equivalent Au(1), two equivalent Sn(1), and four equivalent Sn(3) atoms to form distorted face-sharing YbSn6Au6 cuboctahedra. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to one Yb(1), one Yb(2), two equivalent Yb(3), two equivalent Yb(4), one Sn(3), and two equivalent Sn(1) atoms. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to three equivalent Yb(1), three equivalent Yb(3), and three equivalent Sn(2) atoms. In the third Au site, Au(3) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(1), two equivalent Yb(2), one Sn(1), one Sn(2), and two equivalent Sn(3) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(1), two equivalent Yb(2), one Au(3), two equivalent Au(1), and one Sn(1) atom. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to three equivalent Yb(1), three equivalent Yb(3), one Au(3), and three equivalent Au(2) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to one Yb(1), one Yb(2), two equivalent Yb(3), two equivalent Yb(4), one Au(1), and two equivalent Au(3) atoms.
YbAuSn crystallizes in the orthorhombic Imm2 space group. There are four inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 12-coordinate geometry to one Au(1), two equivalent Au(3), three equivalent Au(2), one Sn(3), two equivalent Sn(1), and three equivalent Sn(2) atoms. The Yb(1)-Au(1) bond length is 3.12 Å. Both Yb(1)-Au(3) bond lengths are 3.11 Å. There are two shorter (3.25 Å) and one longer (3.39 Å) Yb(1)-Au(2) bond length. The Yb(1)-Sn(3) bond length is 3.45 Å. Both Yb(1)-Sn(1) bond lengths are 3.33 Å. There are two shorter (3.21 Å) and one longer (3.31 Å) Yb(1)-Sn(2) bond length. In the second Yb site, Yb(2) is bonded to two equivalent Au(1), four equivalent Au(3), two equivalent Sn(3), and four equivalent Sn(1) atoms to form distorted face-sharing YbSn6Au6 cuboctahedra. Both Yb(2)-Au(1) bond lengths are 3.34 Å. All Yb(2)-Au(3) bond lengths are 3.51 Å. Both Yb(2)-Sn(3) bond lengths are 3.09 Å. All Yb(2)-Sn(1) bond lengths are 3.13 Å. In the third Yb site, Yb(3) is bonded in a 12-coordinate geometry to one Au(3), two equivalent Au(1), three equivalent Au(2), one Sn(1), two equivalent Sn(3), and three equivalent Sn(2) atoms. The Yb(3)-Au(3) bond length is 3.14 Å. Both Yb(3)-Au(1) bond lengths are 3.20 Å. There is one shorter (3.19 Å) and two longer (3.29 Å) Yb(3)-Au(2) bond lengths. The Yb(3)-Sn(1) bond length is 3.34 Å. Both Yb(3)-Sn(3) bond lengths are 3.42 Å. There is one shorter (3.26 Å) and two longer (3.36 Å) Yb(3)-Sn(2) bond lengths. In the fourth Yb site, Yb(4) is bonded to two equivalent Au(3), four equivalent Au(1), two equivalent Sn(1), and four equivalent Sn(3) atoms to form distorted face-sharing YbSn6Au6 cuboctahedra. Both Yb(4)-Au(3) bond lengths are 3.46 Å. All Yb(4)-Au(1) bond lengths are 3.29 Å. Both Yb(4)-Sn(1) bond lengths are 3.22 Å. All Yb(4)-Sn(3) bond lengths are 3.15 Å. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to one Yb(1), one Yb(2), two equivalent Yb(3), two equivalent Yb(4), one Sn(3), and two equivalent Sn(1) atoms. The Au(1)-Sn(3) bond length is 2.73 Å. Both Au(1)-Sn(1) bond lengths are 2.75 Å. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to three equivalent Yb(1), three equivalent Yb(3), and three equivalent Sn(2) atoms. All Au(2)-Sn(2) bond lengths are 2.72 Å. In the third Au site, Au(3) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(1), two equivalent Yb(2), one Sn(1), one Sn(2), and two equivalent Sn(3) atoms. The Au(3)-Sn(1) bond length is 2.78 Å. The Au(3)-Sn(2) bond length is 2.92 Å. Both Au(3)-Sn(3) bond lengths are 2.76 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(1), two equivalent Yb(2), one Au(3), two equivalent Au(1), and one Sn(1) atom. The Sn(1)-Sn(1) bond length is 3.07 Å. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to three equivalent Yb(1), three equivalent Yb(3), one Au(3), and three equivalent Au(2) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to one Yb(1), one Yb(2), two equivalent Yb(3), two equivalent Yb(4), one Au(1), and two equivalent Au(3) atoms.