TbNi3Cu2 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded in a 18-coordinate geometry to twelve equivalent Ni(1) and six equivalent Cu(1) atoms. Ni(1) is bonded to four equivalent Tb(1), four equivalent Ni(1), and four equivalent Cu(1) atoms to form a mixture of edge, corner, and face-sharing NiTb4Cu4Ni4 cuboctahedra. Cu(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Ni(1) atoms.
TbNi3Cu2 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded in a 18-coordinate geometry to twelve equivalent Ni(1) and six equivalent Cu(1) atoms. All Tb(1)-Ni(1) bond lengths are 3.14 Å. All Tb(1)-Cu(1) bond lengths are 2.83 Å. Ni(1) is bonded to four equivalent Tb(1), four equivalent Ni(1), and four equivalent Cu(1) atoms to form a mixture of edge, corner, and face-sharing NiTb4Cu4Ni4 cuboctahedra. All Ni(1)-Ni(1) bond lengths are 2.45 Å. All Ni(1)-Cu(1) bond lengths are 2.42 Å. Cu(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Ni(1) atoms.