Materials Data on Ti5InS8 by Materials Project

Abstract

InTi5S8 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Ti3+ sites. In the first Ti3+ site, Ti3+ is bonded to six S2- atoms to form a mixture of edge and corner-sharing TiS6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are four shorter (2.45 Å) and two longer (2.47 Å) Ti–S bond lengths. In the second Ti3+ site, Ti3+ is bonded to six S2- atoms to form a mixture of face, edge, and corner-sharing TiS6 octahedra. The corner-sharing octahedra tilt angles range from 47–49°. There are a spread of Ti–S bond distances ranging from 2.39–2.52 Å. In the third Ti3+ site, Ti3+ is bonded to six S2- atoms to form a mixture of face, edge, and corner-sharing TiS6 octahedra. The corner-sharing octahedra tilt angles range from 48–49°. There are a spread of Ti–S bond distances ranging from 2.41–2.54 Å. In1+ is bonded in a 8-coordinate geometry to eight S2- atoms. All In–S bond lengths are 3.37 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent Ti3+ and two equivalent In1+ atoms. In the second S2- site, S2- is bonded to five Ti3+ atoms to form distorted edge-sharing STi5 trigonal bipyramids. In the third S2- site, S2- is bonded in a 3-coordinate geometry to three Ti3+ and two equivalent In1+ atoms. In the fourth S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Ti3+ atoms.