Materials Data on KSNO3 by Materials Project
KNSO3 crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to two equivalent N1- and six O2- atoms. Both K–N bond lengths are 3.14 Å. There are a spread of K–O bond distances ranging from 2.77–3.05 Å. N1- is bonded in a distorted single-bond geometry to two equivalent K1+ and one S6+ atom. The N–S bond length is 1.64 Å. S6+ is bonded in a tetrahedral geometry to one N1- and three O2- atoms. All S–O bond lengths are 1.47 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one S6+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one S6+ atom.