CaErAl4 is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Ca(1) is bonded in a 16-coordinate geometry to four equivalent Er(1) and twelve equivalent Al(1) atoms. Er(1) is bonded in a 16-coordinate geometry to four equivalent Ca(1) and twelve equivalent Al(1) atoms. Al(1) is bonded to three equivalent Ca(1), three equivalent Er(1), and six equivalent Al(1) atoms to form a mixture of corner, edge, and face-sharing AlCa3Er3Al6 cuboctahedra.
CaErAl4 is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Ca(1) is bonded in a 16-coordinate geometry to four equivalent Er(1) and twelve equivalent Al(1) atoms. All Ca(1)-Er(1) bond lengths are 3.42 Å. All Ca(1)-Al(1) bond lengths are 3.28 Å. Er(1) is bonded in a 16-coordinate geometry to four equivalent Ca(1) and twelve equivalent Al(1) atoms. All Er(1)-Al(1) bond lengths are 3.28 Å. Al(1) is bonded to three equivalent Ca(1), three equivalent Er(1), and six equivalent Al(1) atoms to form a mixture of corner, edge, and face-sharing AlCa3Er3Al6 cuboctahedra. There are three shorter (2.79 Å) and three longer (2.80 Å) Al(1)-Al(1) bond lengths.