Hf2SiH is I4/mcm-derived structured and crystallizes in the tetragonal I4/mcm space group. Hf(1) is bonded in a distorted L-shaped geometry to four equivalent Si(1) and two equivalent H(1) atoms. Si(1) is bonded in a 10-coordinate geometry to eight equivalent Hf(1) and two equivalent Si(1) atoms. H(1) is bonded to four equivalent Hf(1) atoms to form edge-sharing HHf4 tetrahedra.
Hf2SiH is I4/mcm-derived structured and crystallizes in the tetragonal I4/mcm space group. Hf(1) is bonded in a distorted L-shaped geometry to four equivalent Si(1) and two equivalent H(1) atoms. All Hf(1)-Si(1) bond lengths are 2.78 Å. Both Hf(1)-H(1) bond lengths are 2.02 Å. Si(1) is bonded in a 10-coordinate geometry to eight equivalent Hf(1) and two equivalent Si(1) atoms. Both Si(1)-Si(1) bond lengths are 2.70 Å. H(1) is bonded to four equivalent Hf(1) atoms to form edge-sharing HHf4 tetrahedra.