Materials Data on K2Ni(CN)4 by Materials Project
K2Ni(CN)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of two nickel molecules and one K(CN)2 framework. In the K(CN)2 framework, K1+ is bonded in a 6-coordinate geometry to six N3- atoms. There are a spread of K–N bond distances ranging from 2.82–3.25 Å. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. In the second C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a 1-coordinate geometry to three equivalent K1+ and one C2+ atom. In the second N3- site, N3- is bonded in a 1-coordinate geometry to three equivalent K1+ and one C2+ atom.