Tm3(PdGe)4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 12-coordinate geometry to six equivalent Pd(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. In the second Tm site, Tm(2) is bonded to two equivalent Ge(2) and four equivalent Ge(1) atoms to form distorted edge-sharing TmGe6 octahedra. Pd(1) is bonded in a 7-coordinate geometry to three equivalent Tm(1), one Ge(1), and three equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Tm(2), four equivalent Tm(1), two equivalent Pd(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Tm(2), two equivalent Tm(1), and six equivalent Pd(1) atoms.
Tm3(PdGe)4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 12-coordinate geometry to six equivalent Pd(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. There are four shorter (3.02 Å) and two longer (3.09 Å) Tm(1)-Pd(1) bond lengths. Both Tm(1)-Ge(2) bond lengths are 2.97 Å. All Tm(1)-Ge(1) bond lengths are 2.99 Å. In the second Tm site, Tm(2) is bonded to two equivalent Ge(2) and four equivalent Ge(1) atoms to form distorted edge-sharing TmGe6 octahedra. Both Tm(2)-Ge(2) bond lengths are 3.01 Å. All Tm(2)-Ge(1) bond lengths are 3.01 Å. Pd(1) is bonded in a 7-coordinate geometry to three equivalent Tm(1), one Ge(1), and three equivalent Ge(2) atoms. The Pd(1)-Ge(1) bond length is 2.54 Å. There is one shorter (2.56 Å) and two longer (2.57 Å) Pd(1)-Ge(2) bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Tm(2), four equivalent Tm(1), two equivalent Pd(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.65 Å. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Tm(2), two equivalent Tm(1), and six equivalent Pd(1) atoms.