Materials Data on KC2IN2 by Materials Project
KC2N2I is Potassium Silver Cyanide-like structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. K1+ is bonded to six equivalent N3- atoms to form edge-sharing KN6 octahedra. There are two shorter (2.88 Å) and four longer (2.99 Å) K–N bond lengths. C3+ is bonded in a distorted single-bond geometry to one N3- and one I1- atom. The C–N bond length is 1.18 Å. The C–I bond length is 2.28 Å. N3- is bonded in a 4-coordinate geometry to three equivalent K1+ and one C3+ atom. I1- is bonded in a linear geometry to two equivalent C3+ atoms.
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