Tm2(PdAl3)3 crystallizes in the orthorhombic Cmcm space group. Tm(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 Tm(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 Tm(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 Tm(1) and two equivalent Pd(2) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Tm(1), one Pd(2), two equivalent Pd(1), and one Al(3) atom. In the third Al site, Al(3) is bonded in a 10-coordinate geometry to two equivalent Tm(1), one Pd(2), two equivalent Pd(1), one Al(3), two equivalent Al(2), and two equivalent Al(4) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Tm(1), two equivalent Pd(1), and two equivalent Al(3) atoms.
Tm2(PdAl3)3 crystallizes in the orthorhombic Cmcm space group. Tm(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 Tm(1)-Pd(2) bond lengths are 3.44 Å. All Tm(1)-Pd(1) bond lengths are 3.47 Å. The Tm(1)-Al(1) bond length is 3.12 Å. Both Tm(1)-Al(3) bond lengths are 3.06 Å. There is one shorter (3.09 Å) and one longer (3.19 Å) Tm(1)-Al(4) bond length. There are a spread of Tm(1)-Al(2) bond distances ranging from 3.04-3.09 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 8-coordinate geometry to four equivalent Tm(1), two equivalent Al(3), two equivalent Al(4), and four equivalent Al(2) atoms. Both Pd(1)-Al(3) bond lengths are 2.66 Å. Both Pd(1)-Al(4) bond lengths are 2.56 Å. There are two shorter (2.59 Å) and two longer (2.65 Å) Pd(1)-Al(2) bond lengths. In the second Pd site, Pd(2) is bonded in a 8-coordinate geometry to four equivalent Tm(1), two equivalent Al(1), two equivalent Al(3), and four equivalent Al(2) atoms. Both Pd(2)-Al(1) bond lengths are 2.55 Å. Both Pd(2)-Al(3) bond lengths are 2.62 Å. All Pd(2)-Al(2) bond lengths are 2.65 Å. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded in a 2-coordinate geometry to two equivalent Tm(1) and two equivalent Pd(2) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Tm(1), one Pd(2), two equivalent Pd(1), and one Al(3) atom. The Al(2)-Al(3) bond length is 2.86 Å. In the third Al site, Al(3) is bonded in a 10-coordinate geometry to two equivalent Tm(1), one Pd(2), two equivalent Pd(1), one Al(3), two equivalent Al(2), and two equivalent Al(4) atoms. The Al(3)-Al(3) bond length is 2.80 Å. Both Al(3)-Al(4) bond lengths are 2.84 Å. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Tm(1), two equivalent Pd(1), and two equivalent Al(3) atoms.