Materials Data on KCo(N3O4)2 by Materials Project

Abstract

K(NO2)4CoN2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is one-dimensional and consists of four diamino cobalt molecules and two K(NO2)4 ribbons oriented in the (1, 0, 0) direction. In each K(NO2)4 ribbon, K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.84–3.11 Å. There are four inequivalent N2+ sites. In the first N2+ site, N2+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.23 Å. In the second N2+ site, N2+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.25 Å) N–O bond length. In the third N2+ site, N2+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.22 Å) and one longer (1.23 Å) N–O bond length. In the fourth N2+ site, N2+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.23 Å) and one longer (1.24 Å) N–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N2+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one K1+ and one N2+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to two equivalent K1+ and one N2+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to two equivalent K1+ and one N2+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one N2+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one N2+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one N2+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one N2+ atom.