YCoAl2 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded in a 1-coordinate geometry to three equivalent Co(1) and ten equivalent Al(1) atoms. Co(1) is bonded in a 9-coordinate geometry to three equivalent Y(1) and six equivalent Al(1) atoms. Al(1) is bonded in a 11-coordinate geometry to five equivalent Y(1), three equivalent Co(1), and three equivalent Al(1) atoms.
YCoAl2 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded in a 1-coordinate geometry to three equivalent Co(1) and ten equivalent Al(1) atoms. There is one shorter (2.77 Å) and two longer (3.05 Å) Y(1)-Co(1) bond lengths. There are a spread of Y(1)-Al(1) bond distances ranging from 3.11-3.30 Å. Co(1) is bonded in a 9-coordinate geometry to three equivalent Y(1) and six equivalent Al(1) atoms. There are two shorter (2.45 Å) and four longer (2.46 Å) Co(1)-Al(1) bond lengths. Al(1) is bonded in a 11-coordinate geometry to five equivalent Y(1), three equivalent Co(1), and three equivalent Al(1) atoms. There is one shorter (2.69 Å) and two longer (2.76 Å) Al(1)-Al(1) bond lengths.