ErCuPb crystallizes in the hexagonal P6_3mc space group. Er(1) is bonded in a 9-coordinate geometry to three equivalent Cu(1) and six equivalent Pb(1) atoms. Cu(1) is bonded in a 7-coordinate geometry to three equivalent Er(1) and four equivalent Pb(1) atoms. Pb(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Cu(1) atoms.
ErCuPb crystallizes in the hexagonal P6_3mc space group. Er(1) is bonded in a 9-coordinate geometry to three equivalent Cu(1) and six equivalent Pb(1) atoms. All Er(1)-Cu(1) bond lengths are 2.89 Å. There are three shorter (3.12 Å) and three longer (3.28 Å) Er(1)-Pb(1) bond lengths. Cu(1) is bonded in a 7-coordinate geometry to three equivalent Er(1) and four equivalent Pb(1) atoms. There are three shorter (2.73 Å) and one longer (2.90 Å) Cu(1)-Pb(1) bond length. Pb(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Cu(1) atoms.