Materials Data on NbHO3 by Materials Project
HNbO3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 29–43°. There are a spread of Nb–O bond distances ranging from 1.85–2.20 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 22–46°. There are a spread of Nb–O bond distances ranging from 1.82–2.24 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 24–46°. There are a spread of Nb–O bond distances ranging from 1.82–2.22 Å. In the fourth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 22–44°. There are a spread of Nb–O bond distances ranging from 1.86–2.28 Å. There are four 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 1.00 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. In the third 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 fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two Nb5+ and one H1+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two Nb5+ and one H1+ atom. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the tenth O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to two Nb5+ and one H1+ atom. In the twelfth O2- site, O2- is bonded in a distorted single-bond geometry to two Nb5+ and one H1+ atom.