Materials Data on K2SO3 by Materials Project

Abstract

K2SO3 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. there are three inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 9-coordinate geometry to nine equivalent O2- atoms. There are six shorter (3.06 Å) and three longer (3.24 Å) K–O bond lengths. In the second K1+ site, K1+ is bonded to six equivalent O2- atoms to form face-sharing KO6 octahedra. All K–O bond lengths are 2.65 Å. In the third K1+ site, K1+ is bonded to six equivalent O2- atoms to form face-sharing KO6 octahedra. All K–O bond lengths are 2.81 Å. S4+ is bonded in a trigonal non-coplanar geometry to three equivalent O2- atoms. All S–O bond lengths are 1.54 Å. O2- is bonded in a 1-coordinate geometry to five K1+ and one S4+ atom.