Tb4RhCd crystallizes in the cubic F-43m space group. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 3-coordinate geometry to three equivalent Rh(1) and three equivalent Cd(1) atoms. In the second Tb site, Tb(2) is bonded in a 4-coordinate geometry to two equivalent Rh(1) and two equivalent Cd(1) atoms. In the third Tb site, Tb(3) is bonded in a distorted bent 150 degrees geometry to two equivalent Rh(1) and two equivalent Cd(1) atoms. Rh(1) is bonded in a 6-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Tb(3) atoms. Cd(1) is bonded to three equivalent Tb(1), three equivalent Tb(2), three equivalent Tb(3), and three equivalent Cd(1) atoms to form a mixture of distorted face and corner-sharing CdTb9Cd3 cuboctahedra.
Tb4RhCd crystallizes in the cubic F-43m space group. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 3-coordinate geometry to three equivalent Rh(1) and three equivalent Cd(1) atoms. All Tb(1)-Rh(1) bond lengths are 2.82 Å. All Tb(1)-Cd(1) bond lengths are 3.42 Å. In the second Tb site, Tb(2) is bonded in a 4-coordinate geometry to two equivalent Rh(1) and two equivalent Cd(1) atoms. Both Tb(2)-Rh(1) bond lengths are 3.48 Å. Both Tb(2)-Cd(1) bond lengths are 3.27 Å. In the third Tb site, Tb(3) is bonded in a distorted bent 150 degrees geometry to two equivalent Rh(1) and two equivalent Cd(1) atoms. Both Tb(3)-Rh(1) bond lengths are 2.81 Å. Both Tb(3)-Cd(1) bond lengths are 3.49 Å. Rh(1) is bonded in a 6-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Tb(3) atoms. Cd(1) is bonded to three equivalent Tb(1), three equivalent Tb(2), three equivalent Tb(3), and three equivalent Cd(1) atoms to form a mixture of distorted face and corner-sharing CdTb9Cd3 cuboctahedra. All Cd(1)-Cd(1) bond lengths are 3.09 Å.