Yb2(IrAl3)3 crystallizes in the orthorhombic Cmcm space group. Yb(1) is bonded in a 11-coordinate geometry to one Al(1), two equivalent Al(3), two equivalent Al(4), and six equivalent Al(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 8-coordinate geometry to two equivalent Al(3), two equivalent Al(4), and four equivalent Al(2) atoms. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to 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 10-coordinate geometry to two equivalent Yb(1), two equivalent Ir(2), two equivalent Al(4), and four equivalent Al(2) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Yb(1), one Ir(2), two equivalent Ir(1), and one Al(1) atom. In the third Al site, Al(3) is bonded in a 3-coordinate geometry to two equivalent Yb(1), one Ir(2), and two equivalent Ir(1) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Yb(1), two equivalent Ir(1), and one Al(1) atom.
Yb2(IrAl3)3 crystallizes in the orthorhombic Cmcm space group. Yb(1) is bonded in a 11-coordinate geometry to one Al(1), two equivalent Al(3), two equivalent Al(4), and six equivalent Al(2) atoms. The Yb(1)-Al(1) bond length is 3.06 Å. Both Yb(1)-Al(3) bond lengths are 3.13 Å. There is one shorter (3.05 Å) and one longer (3.12 Å) Yb(1)-Al(4) bond length. There are four shorter (3.06 Å) and two longer (3.07 Å) Yb(1)-Al(2) bond lengths. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 8-coordinate geometry to two equivalent Al(3), two equivalent Al(4), and four equivalent Al(2) atoms. Both Ir(1)-Al(3) bond lengths are 2.59 Å. Both Ir(1)-Al(4) bond lengths are 2.57 Å. There are two shorter (2.54 Å) and two longer (2.60 Å) Ir(1)-Al(2) bond lengths. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to two equivalent Al(1), two equivalent Al(3), and four equivalent Al(2) atoms. Both Ir(2)-Al(1) bond lengths are 2.59 Å. Both Ir(2)-Al(3) bond lengths are 2.56 Å. All Ir(2)-Al(2) bond lengths are 2.59 Å. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded in a 10-coordinate geometry to two equivalent Yb(1), two equivalent Ir(2), two equivalent Al(4), and four equivalent Al(2) atoms. Both Al(1)-Al(4) bond lengths are 2.72 Å. All Al(1)-Al(2) bond lengths are 2.76 Å. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Yb(1), one Ir(2), two equivalent Ir(1), and one Al(1) atom. In the third Al site, Al(3) is bonded in a 3-coordinate geometry to two equivalent Yb(1), one Ir(2), and two equivalent Ir(1) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Yb(1), two equivalent Ir(1), and one Al(1) atom.