ThAl3 crystallizes in the hexagonal P6_3/mmc space group. Th(1) is bonded to twelve equivalent Al(1) atoms to form a mixture of distorted corner and face-sharing ThAl12 cuboctahedra. Al(1) is bonded in a 10-coordinate geometry to four equivalent Th(1) and six equivalent Al(1) atoms.
ThAl3 crystallizes in the hexagonal P6_3/mmc space group. Th(1) is bonded to twelve equivalent Al(1) atoms to form a mixture of distorted corner and face-sharing ThAl12 cuboctahedra. There are six shorter (3.17 Å) and six longer (3.28 Å) Th(1)-Al(1) bond lengths. Al(1) is bonded in a 10-coordinate geometry to four equivalent Th(1) and six equivalent Al(1) atoms. There are two shorter (2.73 Å) and four longer (2.78 Å) Al(1)-Al(1) bond lengths.