Materials Data on TiH2SO6 by Materials Project

Abstract

TiH2SO6 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with two equivalent TiO6 octahedra and corners with three equivalent SO4 tetrahedra. The corner-sharing octahedral tilt angles are 16°. There are a spread of Ti–O bond distances ranging from 1.76–2.10 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. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 15–38°. There are a spread of S–O bond distances ranging from 1.47–1.51 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Ti4+ and one S6+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ti4+ and two H1+ atoms. In the third O2- site, O2- is bonded in a linear geometry to two equivalent Ti4+ atoms. In the fourth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to one Ti4+ and one S6+ atom. In the sixth O2- site, O2- is bonded in a distorted linear geometry to one Ti4+ and one S6+ atom.