Materials Data on KAu(NO3)4 by Materials Project

Abstract

KAu(NO3)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. K1+ is bonded in a hexagonal bipyramidal geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.82–3.06 Å. Au3+ is bonded in a square co-planar geometry to four O2- atoms. All Au–O bond lengths are 2.05 Å. There are two inequivalent N5+ sites. In the first N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.23 Å) and one longer (1.36 Å) N–O bond length. In the second N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.23–1.37 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one K1+ and one N5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one N5+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Au3+ and one N5+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one N5+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Au3+, and one N5+ atom.