Materials Data on Ti3H2O7 by Materials Project

Abstract

H2Ti3O7 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one H2Ti3O7 sheet oriented in the (0, 0, 1) direction. there are six inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.75–2.54 Å. In the second Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.75–2.55 Å. In the third Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.80–2.54 Å. In the fourth Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.80–2.53 Å. In the fifth Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.86–2.34 Å. In the sixth Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 25°. There are a spread of Ti–O bond distances ranging from 1.87–2.17 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 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two Ti4+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two Ti4+ atoms. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two Ti4+ atoms. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to two Ti4+ atoms. In the fifth O2- site, O2- is bonded in a water-like geometry to two Ti4+ atoms. In the sixth O2- site, O2- is bonded in a water-like geometry to two Ti4+ atoms. In the seventh O2- site, O2- is bonded in a distorted water-like geometry to one Ti4+ and two H1+ atoms. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ti4+ and two H1+ atoms. In the ninth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti4+ atoms. In the tenth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti4+ atoms. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to four Ti4+ atoms. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to four Ti4+ atoms. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to four Ti4+ atoms. In the fourteenth O2- site, O2- is bonded in a 4-coordinate geometry to four Ti4+ atoms.