Y2Ni2Al crystallizes in the orthorhombic Immm space group. Y(1) is bonded in a 10-coordinate geometry to six equivalent Ni(1) and four equivalent Al(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to six equivalent Y(1), one Ni(1), and two equivalent Al(1) atoms. Al(1) is bonded to eight equivalent Y(1) and four equivalent Ni(1) atoms to form a mixture of distorted face and edge-sharing AlY8Ni4 cuboctahedra.
Y2Ni2Al crystallizes in the orthorhombic Immm space group. Y(1) is bonded in a 10-coordinate geometry to six equivalent Ni(1) and four equivalent Al(1) atoms. There are two shorter (2.86 Å) and four longer (2.96 Å) Y(1)-Ni(1) bond lengths. There are two shorter (3.18 Å) and two longer (3.23 Å) Y(1)-Al(1) bond lengths. Ni(1) is bonded in a 9-coordinate geometry to six equivalent Y(1), one Ni(1), and two equivalent Al(1) atoms. The Ni(1)-Ni(1) bond length is 2.50 Å. Both Ni(1)-Al(1) bond lengths are 2.53 Å. Al(1) is bonded to eight equivalent Y(1) and four equivalent Ni(1) atoms to form a mixture of distorted face and edge-sharing AlY8Ni4 cuboctahedra.