Materials Data on K2SrNi(NO2)6 by Materials Project

Abstract

K2Sr(NO2)6Ni crystallizes in the cubic Fm-3 space group. The structure is three-dimensional and consists of four nickel molecules and one K2Sr(NO2)6 framework. In the K2Sr(NO2)6 framework, K1+ is bonded to twelve equivalent O2- atoms to form KO12 cuboctahedra that share edges with six equivalent KO12 cuboctahedra and faces with four equivalent SrO12 cuboctahedra. All K–O bond lengths are 3.12 Å. Sr2+ is bonded to twelve equivalent O2- atoms to form SrO12 cuboctahedra that share faces with eight equivalent KO12 cuboctahedra. All Sr–O bond lengths are 2.78 Å. N3+ is bonded in a bent 120 degrees geometry to two equivalent O2- atoms. Both N–O bond lengths are 1.26 Å. O2- is bonded in a distorted single-bond geometry to two equivalent K1+, one Sr2+, and one N3+ atom.