Materials Data on VHO2 by Materials Project

Abstract

VHO2 crystallizes in the orthorhombic Pmc2_1 space group. The structure is three-dimensional. there are two inequivalent V3+ sites. In the first V3+ site, V3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are a spread of V–O bond distances ranging from 1.95–2.15 Å. In the second V3+ site, V3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are a spread of V–O bond distances ranging from 1.95–2.14 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three V3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three V3+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to three V3+ and one H1+ atom.