Hf2Ge crystallizes in the tetragonal I4/mcm space group. Hf(1) is bonded in a 2-coordinate geometry to two equivalent Ge(1) atoms. Ge(1) is bonded to four equivalent Hf(1) and two equivalent Ge(1) atoms to form distorted corner-sharing GeHf4Ge2 octahedra. The corner-sharing octahedral tilt angles range from 0-44°.
Hf2Ge crystallizes in the tetragonal I4/mcm space group. Hf(1) is bonded in a 2-coordinate geometry to two equivalent Ge(1) atoms. Both Hf(1)-Ge(1) bond lengths are 2.68 Å. Ge(1) is bonded to four equivalent Hf(1) and two equivalent Ge(1) atoms to form distorted corner-sharing GeHf4Ge2 octahedra. The corner-sharing octahedral tilt angles range from 0-44°. Both Ge(1)-Ge(1) bond lengths are 2.57 Å.