YbAu3Ga7 crystallizes in the trigonal R-3c space group. Yb(1) is bonded in a 18-coordinate geometry to six equivalent Au(1) and twelve equivalent Ga(1) atoms. Au(1) is bonded in a 9-coordinate geometry to two equivalent Yb(1), one Ga(2), and six equivalent Ga(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted trigonal planar geometry to two equivalent Yb(1) and three equivalent Au(1) atoms. In the second Ga site, Ga(2) is bonded in a trigonal planar geometry to three equivalent Au(1) atoms.
YbAu3Ga7 crystallizes in the trigonal R-3c space group. Yb(1) is bonded in a 18-coordinate geometry to six equivalent Au(1) and twelve equivalent Ga(1) atoms. All Yb(1)-Au(1) bond lengths are 3.33 Å. There are six shorter (3.33 Å) and six longer (3.44 Å) Yb(1)-Ga(1) bond lengths. Au(1) is bonded in a 9-coordinate geometry to two equivalent Yb(1), one Ga(2), and six equivalent Ga(1) atoms. The Au(1)-Ga(2) bond length is 2.63 Å. There are a spread of Au(1)-Ga(1) bond distances ranging from 2.64-2.71 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted trigonal planar geometry to two equivalent Yb(1) and three equivalent Au(1) atoms. In the second Ga site, Ga(2) is bonded in a trigonal planar geometry to three equivalent Au(1) atoms.