Materials Data on K2Hg3C8(NO)8 by Materials Project
K2Hg3C8(NO)8 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. K1+ is bonded in a 9-coordinate geometry to one N3- and eight O2- atoms. The K–N bond length is 3.30 Å. There are a spread of K–O bond distances ranging from 2.79–3.45 Å. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 2-coordinate geometry to four N3- atoms. There are a spread of Hg–N bond distances ranging from 2.09–2.69 Å. In the second Hg2+ site, Hg2+ is bonded in a distorted linear geometry to two equivalent N3- atoms. Both Hg–N bond lengths are 2.05 Å. There are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a linear geometry to one N3- and one O2- atom. The C–N bond length is 1.21 Å. The C–O bond length is 1.20 Å. In the second C4+ site, C4+ is bonded in a linear geometry to one N3- and one O2- atom. The C–N bond length is 1.21 Å. The C–O bond length is 1.21 Å. In the third C4+ site, C4+ is bonded in a linear geometry to one N3- and one O2- atom. The C–N bond length is 1.21 Å. The C–O bond length is 1.20 Å. In the fourth C4+ site, C4+ is bonded in a linear geometry to one N3- and one O2- atom. The C–N bond length is 1.21 Å. The C–O bond length is 1.20 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted bent 120 degrees geometry to one Hg2+ and one C4+ atom. In the second N3- site, N3- is bonded in a distorted bent 120 degrees geometry to one K1+, one Hg2+, and one C4+ atom. In the third N3- site, N3- is bonded in a 2-coordinate geometry to one Hg2+ and one C4+ atom. In the fourth N3- site, N3- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one C4+ atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent K1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C4+ atom.