Th3LaRu8 is Cubic Laves-derived structured and crystallizes in the trigonal R3m space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a 12-coordinate geometry to one Th(3), three equivalent Th(2), three equivalent Ru(1), three equivalent Ru(4), and six equivalent Ru(2) atoms. In the second Th site, Th(2) is bonded in a 16-coordinate geometry to three equivalent Th(1), one La(1), three equivalent Ru(2), three equivalent Ru(4), and six equivalent Ru(1) atoms. In the third Th site, Th(3) is bonded in a 16-coordinate geometry to one Th(1), three equivalent La(1), three equivalent Ru(1), three equivalent Ru(3), and six equivalent Ru(2) atoms. La(1) is bonded in a 16-coordinate geometry to one Th(2), three equivalent Th(3), three equivalent Ru(2), three equivalent Ru(3), and six equivalent Ru(1) atoms. There are four inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one Th(1), one Th(3), two equivalent Th(2), two equivalent La(1), one Ru(3), one Ru(4), and four equivalent Ru(1) atoms to form RuLa2Th4Ru6 cuboctahedra that share corners with two equivalent Ru(3)La3Th3Ru6 cuboctahedra, corners with two equivalent Ru(4)Th6Ru6 cuboctahedra, corners with four equivalent Ru(1)La2Th4Ru6 cuboctahedra, corners with ten equivalent Ru(2)LaTh5Ru6 cuboctahedra, edges with two equivalent Ru(1)La2Th4Ru6 cuboctahedra, edges with four equivalent Ru(2)LaTh5Ru6 cuboctahedra, faces with three equivalent Ru(3)La3Th3Ru6 cuboctahedra, faces with three equivalent Ru(4)Th6Ru6 cuboctahedra, faces with four equivalent Ru(2)LaTh5Ru6 cuboctahedra, and faces with eight equivalent Ru(1)La2Th4Ru6 cuboctahedra. In the second Ru site, Ru(2) is bonded to one Th(2), two equivalent Th(1), two equivalent Th(3), one La(1), one Ru(3), one Ru(4), and four equivalent Ru(2) atoms to form RuLaTh5Ru6 cuboctahedra that share corners with two equivalent Ru(3)La3Th3Ru6 cuboctahedra, corners with two equivalent Ru(4)Th6Ru6 cuboctahedra, corners with four equivalent Ru(2)LaTh5Ru6 cuboctahedra, corners with ten equivalent Ru(1)La2Th4Ru6 cuboctahedra, edges with two equivalent Ru(2)LaTh5Ru6 cuboctahedra, edges with four equivalent Ru(1)La2Th4Ru6 cuboctahedra, faces with three equivalent Ru(3)La3Th3Ru6 cuboctahedra, faces with three equivalent Ru(4)Th6Ru6 cuboctahedra, faces with four equivalent Ru(1)La2Th4Ru6 cuboctahedra, and faces with eight equivalent Ru(2)LaTh5Ru6 cuboctahedra. In the third Ru site, Ru(3) is bonded to three equivalent Th(3), three equivalent La(1), three equivalent Ru(1), and three equivalent Ru(2) atoms to form RuLa3Th3Ru6 cuboctahedra that share corners with six equivalent Ru(1)La2Th4Ru6 cuboctahedra, corners with six equivalent Ru(2)LaTh5Ru6 cuboctahedra, corners with six equivalent Ru(4)Th6Ru6 cuboctahedra, edges with six equivalent Ru(3)La3Th3Ru6 cuboctahedra, faces with nine equivalent Ru(1)La2Th4Ru6 cuboctahedra, and faces with nine equivalent Ru(2)LaTh5Ru6 cuboctahedra. In the fourth Ru site, Ru(4) is bonded to three equivalent Th(1), three equivalent Th(2), three equivalent Ru(1), and three equivalent Ru(2) atoms to form RuTh6Ru6 cuboctahedra that share corners with six equivalent Ru(1)La2Th4Ru6 cuboctahedra, corners with six equivalent Ru(3)La3Th3Ru6 cuboctahedra, corners with six equivalent Ru(2)LaTh5Ru6 cuboctahedra, edges with six equivalent Ru(4)Th6Ru6 cuboctahedra, faces with nine equivalent Ru(1)La2Th4Ru6 cuboctahedra, and faces with nine equivalent Ru(2)LaTh5Ru6 cuboctahedra.
Th3LaRu8 is Cubic Laves-derived structured and crystallizes in the trigonal R3m space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a 12-coordinate geometry to one Th(3), three equivalent Th(2), three equivalent Ru(1), three equivalent Ru(4), and six equivalent Ru(2) atoms. The Th(1)-Th(3) bond length is 3.35 Å. All Th(1)-Th(2) bond lengths are 3.35 Å. All Th(1)-Ru(1) bond lengths are 3.16 Å. All Th(1)-Ru(4) bond lengths are 3.20 Å. All Th(1)-Ru(2) bond lengths are 3.18 Å. In the second Th site, Th(2) is bonded in a 16-coordinate geometry to three equivalent Th(1), one La(1), three equivalent Ru(2), three equivalent Ru(4), and six equivalent Ru(1) atoms. The Th(2)-La(1) bond length is 3.28 Å. All Th(2)-Ru(2) bond lengths are 3.19 Å. All Th(2)-Ru(4) bond lengths are 3.21 Å. All Th(2)-Ru(1) bond lengths are 3.16 Å. In the third Th site, Th(3) is bonded in a 16-coordinate geometry to one Th(1), three equivalent La(1), three equivalent Ru(1), three equivalent Ru(3), and six equivalent Ru(2) atoms. All Th(3)-La(1) bond lengths are 3.33 Å. All Th(3)-Ru(1) bond lengths are 3.18 Å. All Th(3)-Ru(3) bond lengths are 3.20 Å. All Th(3)-Ru(2) bond lengths are 3.22 Å. La(1) is bonded in a 16-coordinate geometry to one Th(2), three equivalent Th(3), three equivalent Ru(2), three equivalent Ru(3), and six equivalent Ru(1) atoms. All La(1)-Ru(2) bond lengths are 3.21 Å. All La(1)-Ru(3) bond lengths are 3.20 Å. All La(1)-Ru(1) bond lengths are 3.20 Å. There are four inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one Th(1), one Th(3), two equivalent Th(2), two equivalent La(1), one Ru(3), one Ru(4), and four equivalent Ru(1) atoms to form RuLa2Th4Ru6 cuboctahedra that share corners with two equivalent Ru(3)La3Th3Ru6 cuboctahedra, corners with two equivalent Ru(4)Th6Ru6 cuboctahedra, corners with four equivalent Ru(1)La2Th4Ru6 cuboctahedra, corners with ten equivalent Ru(2)LaTh5Ru6 cuboctahedra, edges with two equivalent Ru(1)La2Th4Ru6 cuboctahedra, edges with four equivalent Ru(2)LaTh5Ru6 cuboctahedra, faces with three equivalent Ru(3)La3Th3Ru6 cuboctahedra, faces with three equivalent Ru(4)Th6Ru6 cuboctahedra, faces with four equivalent Ru(2)LaTh5Ru6 cuboctahedra, and faces with eight equivalent Ru(1)La2Th4Ru6 cuboctahedra. The Ru(1)-Ru(3) bond length is 2.73 Å. The Ru(1)-Ru(4) bond length is 2.70 Å. There are two shorter (2.72 Å) and two longer (2.74 Å) Ru(1)-Ru(1) bond lengths. In the second Ru site, Ru(2) is bonded to one Th(2), two equivalent Th(1), two equivalent Th(3), one La(1), one Ru(3), one Ru(4), and four equivalent Ru(2) atoms to form RuLaTh5Ru6 cuboctahedra that share corners with two equivalent Ru(3)La3Th3Ru6 cuboctahedra, corners with two equivalent Ru(4)Th6Ru6 cuboctahedra, corners with four equivalent Ru(2)LaTh5Ru6 cuboctahedra, corners with ten equivalent Ru(1)La2Th4Ru6 cuboctahedra, edges with two equivalent Ru(2)LaTh5Ru6 cuboctahedra, edges with four equivalent Ru(1)La2Th4Ru6 cuboctahedra, faces with three equivalent Ru(3)La3Th3Ru6 cuboctahedra, faces with three equivalent Ru(4)Th6Ru6 cuboctahedra, faces with four equivalent Ru(1)La2Th4Ru6 cuboctahedra, and faces with eight equivalent Ru(2)LaTh5Ru6 cuboctahedra. The Ru(2)-Ru(3) bond length is 2.73 Å. The Ru(2)-Ru(4) bond length is 2.70 Å. There are two shorter (2.72 Å) and two longer (2.74 Å) Ru(2)-Ru(2) bond lengths. In the third Ru site, Ru(3) is bonded to three equivalent Th(3), three equivalent La(1), three equivalent Ru(1), and three equivalent Ru(2) atoms to form RuLa3Th3Ru6 cuboctahedra that share corners with six equivalent Ru(1)La2Th4Ru6 cuboctahedra, corners with six equivalent Ru(2)LaTh5Ru6 cuboctahedra, corners with six equivalent Ru(4)Th6Ru6 cuboctahedra, edges with six equivalent Ru(3)La3Th3Ru6 cuboctahedra, faces with nine equivalent Ru(1)La2Th4Ru6 cuboctahedra, and faces with nine equivalent Ru(2)LaTh5Ru6 cuboctahedra. In the fourth Ru site, Ru(4) is bonded to three equivalent Th(1), three equivalent Th(2), three equivalent Ru(1), and three equivalent Ru(2) atoms to form RuTh6Ru6 cuboctahedra that share corners with six equivalent Ru(1)La2Th4Ru6 cuboctahedra, corners with six equivalent Ru(3)La3Th3Ru6 cuboctahedra, corners with six equivalent Ru(2)LaTh5Ru6 cuboctahedra, edges with six equivalent Ru(4)Th6Ru6 cuboctahedra, faces with nine equivalent Ru(1)La2Th4Ru6 cuboctahedra, and faces with nine equivalent Ru(2)LaTh5Ru6 cuboctahedra.