Materials Data on K2S2NO6 by Materials Project
K2NS2O6 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.77–3.31 Å. N2- is bonded in a bent 120 degrees geometry to two equivalent S6+ atoms. Both N–S bond lengths are 1.68 Å. S6+ is bonded to one N2- and three O2- atoms to form corner-sharing SNO3 tetrahedra. There are a spread of S–O bond distances ranging from 1.46–1.48 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent K1+ and one S6+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent K1+ and one S6+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent K1+ and one S6+ atom.