Er4PdCd crystallizes in the cubic F-43m space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 3-coordinate geometry to three equivalent Pd(1) and three equivalent Cd(1) atoms. In the second Er site, Er(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Pd(1) and two equivalent Cd(1) atoms. In the third Er site, Er(3) is bonded in a 4-coordinate geometry to two equivalent Pd(1) and two equivalent Cd(1) atoms. Pd(1) is bonded in a 6-coordinate geometry to three equivalent Er(1), three equivalent Er(2), and three equivalent Er(3) atoms. Cd(1) is bonded to three equivalent Er(1), three equivalent Er(2), three equivalent Er(3), and three equivalent Cd(1) atoms to form a mixture of distorted face and corner-sharing CdEr9Cd3 cuboctahedra.
Er4PdCd crystallizes in the cubic F-43m space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 3-coordinate geometry to three equivalent Pd(1) and three equivalent Cd(1) atoms. All Er(1)-Pd(1) bond lengths are 2.83 Å. All Er(1)-Cd(1) bond lengths are 3.30 Å. In the second Er site, Er(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Pd(1) and two equivalent Cd(1) atoms. Both Er(2)-Pd(1) bond lengths are 2.83 Å. Both Er(2)-Cd(1) bond lengths are 3.46 Å. In the third Er site, Er(3) is bonded in a 4-coordinate geometry to two equivalent Pd(1) and two equivalent Cd(1) atoms. Both Er(3)-Pd(1) bond lengths are 3.47 Å. Both Er(3)-Cd(1) bond lengths are 3.21 Å. Pd(1) is bonded in a 6-coordinate geometry to three equivalent Er(1), three equivalent Er(2), and three equivalent Er(3) atoms. Cd(1) is bonded to three equivalent Er(1), three equivalent Er(2), three equivalent Er(3), and three equivalent Cd(1) atoms to form a mixture of distorted face and corner-sharing CdEr9Cd3 cuboctahedra. All Cd(1)-Cd(1) bond lengths are 3.13 Å.