EuAu3 crystallizes in the hexagonal P6_3/mmc space group. Eu(1) is bonded to twelve equivalent Au(1) atoms to form a mixture of face and corner-sharing EuAu12 cuboctahedra. Au(1) is bonded in a 10-coordinate geometry to four equivalent Eu(1) and six equivalent Au(1) atoms.
EuAu3 crystallizes in the hexagonal P6_3/mmc space group. Eu(1) is bonded to twelve equivalent Au(1) atoms to form a mixture of face and corner-sharing EuAu12 cuboctahedra. There are six shorter (3.15 Å) and six longer (3.25 Å) Eu(1)-Au(1) bond lengths. Au(1) is bonded in a 10-coordinate geometry to four equivalent Eu(1) and six equivalent Au(1) atoms. There are four shorter (2.94 Å) and two longer (2.95 Å) Au(1)-Au(1) bond lengths.