Materials Data on TiS by Materials Project

Abstract

TiS is Molybdenum Carbide MAX Phase-like structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Ti2+ sites. In the first Ti2+ site, Ti2+ is bonded to six equivalent S2- atoms to form a mixture of corner, edge, and face-sharing TiS6 octahedra. The corner-sharing octahedral tilt angles are 46°. All Ti–S bond lengths are 2.50 Å. In the second Ti2+ site, Ti2+ is bonded to six S2- atoms to form a mixture of corner, edge, and face-sharing TiS6 octahedra. The corner-sharing octahedra tilt angles range from 0–46°. There are three shorter (2.37 Å) and three longer (2.59 Å) Ti–S bond lengths. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to six Ti2+ atoms to form a mixture of distorted corner and edge-sharing STi6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 7°. In the second S2- site, S2- is bonded to six equivalent Ti2+ atoms to form a mixture of corner and edge-sharing STi6 octahedra.