Tm(RhGe)2 crystallizes in the tetragonal I4/mmm space group. Tm(1) is bonded in a 16-coordinate geometry to eight equivalent Rh(1) and eight equivalent Ge(1) atoms. Rh(1) is bonded to four equivalent Tm(1) and four equivalent Ge(1) atoms to form a mixture of distorted face, corner, and edge-sharing RhTm4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Tm(1), four equivalent Rh(1), and one Ge(1) atom.
Tm(RhGe)2 crystallizes in the tetragonal I4/mmm space group. Tm(1) is bonded in a 16-coordinate geometry to eight equivalent Rh(1) and eight equivalent Ge(1) atoms. All Tm(1)-Rh(1) bond lengths are 3.27 Å. All Tm(1)-Ge(1) bond lengths are 3.14 Å. Rh(1) is bonded to four equivalent Tm(1) and four equivalent Ge(1) atoms to form a mixture of distorted face, corner, and edge-sharing RhTm4Ge4 tetrahedra. All Rh(1)-Ge(1) bond lengths are 2.43 Å. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Tm(1), four equivalent Rh(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.47 Å.