Materials Data on MgAl2Cu by Materials Project
Al2CuMg crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Mg is bonded in a 1-coordinate geometry to three equivalent Cu and ten equivalent Al atoms. There are one shorter (2.65 Å) and two longer (2.82 Å) Mg–Cu bond lengths. There are six shorter (3.04 Å) and four longer (3.12 Å) Mg–Al bond lengths. Cu is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Al atoms. There are two shorter (2.51 Å) and four longer (2.54 Å) Cu–Al bond lengths. Al is bonded in a 3-coordinate geometry to five equivalent Mg and three equivalent Cu atoms.