Hf3Ge crystallizes in the tetragonal P4_2/n space group. There are three inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 3-coordinate geometry to three equivalent Ge(1) atoms. In the second Hf site, Hf(2) is bonded in a distorted see-saw-like geometry to four equivalent Ge(1) atoms. In the third Hf site, Hf(3) is bonded in a distorted bent 150 degrees geometry to two equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to two equivalent Hf(3), three equivalent Hf(1), and four equivalent Hf(2) atoms.
Hf3Ge crystallizes in the tetragonal P4_2/n space group. There are three inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 3-coordinate geometry to three equivalent Ge(1) atoms. There are a spread of Hf(1)-Ge(1) bond distances ranging from 2.74-2.89 Å. In the second Hf site, Hf(2) is bonded in a distorted see-saw-like geometry to four equivalent Ge(1) atoms. There are a spread of Hf(2)-Ge(1) bond distances ranging from 2.76-2.83 Å. In the third Hf site, Hf(3) is bonded in a distorted bent 150 degrees geometry to two equivalent Ge(1) atoms. There is one shorter (2.76 Å) and one longer (2.84 Å) Hf(3)-Ge(1) bond length. Ge(1) is bonded in a 9-coordinate geometry to two equivalent Hf(3), three equivalent Hf(1), and four equivalent Hf(2) atoms.