Materials Data on KCd(NO2)3 by Materials Project
KCd(NO2)3 crystallizes in the trigonal R3 space group. The structure is three-dimensional. K1+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of K–O bond distances ranging from 3.01–3.43 Å. Cd2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are three shorter (2.49 Å) and three longer (2.65 Å) Cd–O bond lengths. N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) N–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+, one Cd2+, and one N3+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent K1+, one Cd2+, and one N3+ atom.