Y2(PdAl3)3 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded in a 17-coordinate geometry to two equivalent Pd(2), four equivalent Pd(1), one Al(1), two equivalent Al(3), two equivalent Al(4), and six equivalent Al(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(3), two equivalent Al(4), and four equivalent Al(2) atoms. In the second Pd site, Pd(2) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(1), two equivalent Al(3), and four equivalent Al(2) atoms. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Pd(2) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Y(1), one Pd(2), and two equivalent Pd(1) atoms. In the third Al site, Al(3) is bonded in a 3-coordinate geometry to two equivalent Y(1), one Pd(2), and two equivalent Pd(1) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Pd(1) atoms.
Y2(PdAl3)3 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded in a 17-coordinate geometry to two equivalent Pd(2), four equivalent Pd(1), one Al(1), two equivalent Al(3), two equivalent Al(4), and six equivalent Al(2) atoms. Both Y(1)-Pd(2) bond lengths are 3.41 Å. There are two shorter (3.46 Å) and two longer (3.47 Å) Y(1)-Pd(1) bond lengths. The Y(1)-Al(1) bond length is 3.13 Å. Both Y(1)-Al(3) bond lengths are 3.09 Å. There is one shorter (3.08 Å) and one longer (3.22 Å) Y(1)-Al(4) bond length. There are four shorter (3.06 Å) and two longer (3.07 Å) Y(1)-Al(2) bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(3), two equivalent Al(4), and four equivalent Al(2) atoms. Both Pd(1)-Al(3) bond lengths are 2.65 Å. Both Pd(1)-Al(4) bond lengths are 2.55 Å. There are two shorter (2.58 Å) and two longer (2.64 Å) Pd(1)-Al(2) bond lengths. In the second Pd site, Pd(2) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(1), two equivalent Al(3), and four equivalent Al(2) atoms. Both Pd(2)-Al(1) bond lengths are 2.56 Å. Both Pd(2)-Al(3) bond lengths are 2.60 Å. All Pd(2)-Al(2) bond lengths are 2.64 Å. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Pd(2) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Y(1), one Pd(2), and two equivalent Pd(1) atoms. In the third Al site, Al(3) is bonded in a 3-coordinate geometry to two equivalent Y(1), one Pd(2), and two equivalent Pd(1) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Pd(1) atoms.