TbCu2Al3 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded in a 18-coordinate geometry to six equivalent Cu(1) and twelve equivalent Al(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Al(1) atoms. Al(1) is bonded to four equivalent Tb(1) and four equivalent Cu(1) atoms to form a mixture of distorted corner, edge, and face-sharing AlTb4Cu4 cuboctahedra.
TbCu2Al3 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded in a 18-coordinate geometry to six equivalent Cu(1) and twelve equivalent Al(1) atoms. All Tb(1)-Cu(1) bond lengths are 3.07 Å. All Tb(1)-Al(1) bond lengths are 3.33 Å. Cu(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Al(1) atoms. All Cu(1)-Al(1) bond lengths are 2.53 Å. Al(1) is bonded to four equivalent Tb(1) and four equivalent Cu(1) atoms to form a mixture of distorted corner, edge, and face-sharing AlTb4Cu4 cuboctahedra.