TbZn12 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 20-coordinate geometry to four equivalent Zn(2), eight equivalent Zn(1), and eight equivalent Zn(3) atoms. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent Tb(1), two equivalent Zn(1), four equivalent Zn(2), and four equivalent Zn(3) atoms to form a mixture of face, corner, and edge-sharing ZnTb2Zn10 cuboctahedra. In the second Zn site, Zn(3) is bonded in a distorted q6 geometry to two equivalent Tb(1), two equivalent Zn(3), four equivalent Zn(1), and four equivalent Zn(2) atoms. In the third Zn site, Zn(2) is bonded in a 10-coordinate geometry to one Tb(1), one Zn(2), four equivalent Zn(1), and four equivalent Zn(3) atoms.
TbZn12 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 20-coordinate geometry to four equivalent Zn(2), eight equivalent Zn(1), and eight equivalent Zn(3) atoms. All Tb(1)-Zn(2) bond lengths are 3.11 Å. All Tb(1)-Zn(1) bond lengths are 3.36 Å. All Tb(1)-Zn(3) bond lengths are 3.18 Å. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent Tb(1), two equivalent Zn(1), four equivalent Zn(2), and four equivalent Zn(3) atoms to form a mixture of face, corner, and edge-sharing ZnTb2Zn10 cuboctahedra. Both Zn(1)-Zn(1) bond lengths are 2.54 Å. All Zn(1)-Zn(2) bond lengths are 2.70 Å. All Zn(1)-Zn(3) bond lengths are 2.56 Å. In the second Zn site, Zn(3) is bonded in a distorted q6 geometry to two equivalent Tb(1), two equivalent Zn(3), four equivalent Zn(1), and four equivalent Zn(2) atoms. Both Zn(3)-Zn(3) bond lengths are 2.70 Å. There are two shorter (2.80 Å) and two longer (2.81 Å) Zn(3)-Zn(2) bond lengths. In the third Zn site, Zn(2) is bonded in a 10-coordinate geometry to one Tb(1), one Zn(2), four equivalent Zn(1), and four equivalent Zn(3) atoms. The Zn(2)-Zn(2) bond length is 2.56 Å.