Ta2(RuPd)3 is Uranium Silicide-derived structured and crystallizes in the orthorhombic Pmmm space group. Ta(1) is bonded to two equivalent Ru(1), two equivalent Ru(2), two equivalent Ru(3), two equivalent Pd(2), and four equivalent Pd(1) atoms to form TaPd6Ru6 cuboctahedra that share corners with four equivalent Ru(1)Ta4Pd4 cuboctahedra, corners with twelve equivalent Ta(1)Pd6Ru6 cuboctahedra, edges with two equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, edges with eight equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, faces with two equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, faces with four equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, and faces with six equivalent Ta(1)Pd6Ru6 cuboctahedra. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to four equivalent Ta(1) and four equivalent Pd(1) atoms to form distorted RuTa4Pd4 cuboctahedra that share corners with eight equivalent Ta(1)Pd6Ru6 cuboctahedra, corners with eight equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, corners with eight equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, edges with four equivalent Ta(1)Pd6Ru6 cuboctahedra, edges with four equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with four equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, and faces with two equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra. In the second Ru site, Ru(2) is bonded in a distorted square co-planar geometry to four equivalent Ta(1), four equivalent Pd(1), and four equivalent Pd(2) atoms. In the third Ru site, Ru(3) is bonded in a distorted square co-planar geometry to four equivalent Ta(1) and four equivalent Pd(1) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded to four equivalent Ta(1), two equivalent Ru(1), two equivalent Ru(2), two equivalent Ru(3), and two equivalent Pd(2) atoms to form distorted PdTa4Pd2Ru6 cuboctahedra that share corners with four equivalent Ru(1)Ta4Pd4 cuboctahedra, corners with twelve equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, edges with two equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, edges with eight equivalent Ta(1)Pd6Ru6 cuboctahedra, faces with two equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, faces with four equivalent Ta(1)Pd6Ru6 cuboctahedra, and faces with six equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra. In the second Pd site, Pd(2) is bonded to four equivalent Ta(1), four equivalent Ru(2), and four equivalent Pd(1) atoms to form distorted PdTa4Pd4Ru4 cuboctahedra that share corners with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, corners with eight equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with eight equivalent Ta(1)Pd6Ru6 cuboctahedra, edges with eight equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, faces with two equivalent Ru(1)Ta4Pd4 cuboctahedra, faces with four equivalent Ta(1)Pd6Ru6 cuboctahedra, faces with four equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, and faces with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra.
Ta2(RuPd)3 is Uranium Silicide-derived structured and crystallizes in the orthorhombic Pmmm space group. Ta(1) is bonded to two equivalent Ru(1), two equivalent Ru(2), two equivalent Ru(3), two equivalent Pd(2), and four equivalent Pd(1) atoms to form TaPd6Ru6 cuboctahedra that share corners with four equivalent Ru(1)Ta4Pd4 cuboctahedra, corners with twelve equivalent Ta(1)Pd6Ru6 cuboctahedra, edges with two equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, edges with eight equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, faces with two equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, faces with four equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, and faces with six equivalent Ta(1)Pd6Ru6 cuboctahedra. Both Ta(1)-Ru(1) bond lengths are 2.75 Å. Both Ta(1)-Ru(2) bond lengths are 2.78 Å. Both Ta(1)-Ru(3) bond lengths are 2.71 Å. Both Ta(1)-Pd(2) bond lengths are 2.81 Å. All Ta(1)-Pd(1) bond lengths are 2.81 Å. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to four equivalent Ta(1) and four equivalent Pd(1) atoms to form distorted RuTa4Pd4 cuboctahedra that share corners with eight equivalent Ta(1)Pd6Ru6 cuboctahedra, corners with eight equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, corners with eight equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, edges with four equivalent Ta(1)Pd6Ru6 cuboctahedra, edges with four equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with four equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, and faces with two equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra. All Ru(1)-Pd(1) bond lengths are 2.74 Å. In the second Ru site, Ru(2) is bonded in a distorted square co-planar geometry to four equivalent Ta(1), four equivalent Pd(1), and four equivalent Pd(2) atoms. All Ru(2)-Pd(1) bond lengths are 2.78 Å. All Ru(2)-Pd(2) bond lengths are 2.81 Å. In the third Ru site, Ru(3) is bonded in a distorted square co-planar geometry to four equivalent Ta(1) and four equivalent Pd(1) atoms. All Ru(3)-Pd(1) bond lengths are 2.78 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded to four equivalent Ta(1), two equivalent Ru(1), two equivalent Ru(2), two equivalent Ru(3), and two equivalent Pd(2) atoms to form distorted PdTa4Pd2Ru6 cuboctahedra that share corners with four equivalent Ru(1)Ta4Pd4 cuboctahedra, corners with twelve equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, edges with two equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, edges with eight equivalent Ta(1)Pd6Ru6 cuboctahedra, faces with two equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, faces with four equivalent Ta(1)Pd6Ru6 cuboctahedra, and faces with six equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra. Both Pd(1)-Pd(2) bond lengths are 2.75 Å. In the second Pd site, Pd(2) is bonded to four equivalent Ta(1), four equivalent Ru(2), and four equivalent Pd(1) atoms to form distorted PdTa4Pd4Ru4 cuboctahedra that share corners with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra, corners with eight equivalent Ru(1)Ta4Pd4 cuboctahedra, edges with eight equivalent Ta(1)Pd6Ru6 cuboctahedra, edges with eight equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, faces with two equivalent Ru(1)Ta4Pd4 cuboctahedra, faces with four equivalent Ta(1)Pd6Ru6 cuboctahedra, faces with four equivalent Pd(1)Ta4Pd2Ru6 cuboctahedra, and faces with four equivalent Pd(2)Ta4Pd4Ru4 cuboctahedra.