Materials Data on Hf(VH2)2 by Materials Project

HfV2H4 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. Hf is bonded in a 8-coordinate geometry to eight equivalent H atoms. All Hf–H bond lengths are 2.04 Å. V is bonded in a distorted rectangular see-saw-like geometry to four equivalent H atoms. There is two shorter (1.80 Å) and two longer (1.83 Å) V–H bond length. H is bonded to two equivalent Hf and two equivalent V atoms to form a mixture of edge and corner-sharing HHf2V2 tetrahedra.