Materials Data on InSb by Materials Project

Abstract

InSb crystallizes in the monoclinic Cm space group. The structure is three-dimensional. In3+ is bonded to six equivalent Sb3- atoms to form distorted InSb6 octahedra that share corners with twelve equivalent SbIn6Sb2 hexagonal bipyramids, corners with six equivalent InSb6 octahedra, and edges with twelve equivalent InSb6 octahedra. The corner-sharing octahedra tilt angles range from 5–6°. There are a spread of In–Sb bond distances ranging from 3.08–3.42 Å. Sb3- is bonded to six equivalent In3+ and two equivalent Sb3- atoms to form distorted SbIn6Sb2 hexagonal bipyramids that share corners with eight equivalent SbIn6Sb2 hexagonal bipyramids, corners with twelve equivalent InSb6 octahedra, and edges with twelve equivalent SbIn6Sb2 hexagonal bipyramids. The corner-sharing octahedra tilt angles range from 59–121°. Both Sb–Sb bond lengths are 3.16 Å.