Cover Feature: Synthesis, Electronic Properties and Reactivity of [B12X11(NO2)]2− (X=F–I) Dianions (Chem. Eur. J. 64/2020). Issue 64 (2nd October 2020) - Asmis, Knut R.
Abstract : The new closo‐dodecaborates [B12 X11 (NO2 )] 2− (X=halogen) were synthesized in high yields and fully characterized by structural and spectroscopic methods. The artwork illustrates its remarkable electronic and chemical stability. However, thermally it easily cleaves off an NO radical. The resulting double negatively charged radical [B12 X11 O] 2−. is highly reactive and can recombine with NO in the gas phase to the even more stable unprecedented [B12 X11 (ONO)] 2− anions. More information can be found in the Full Paper by C. Jenne, J. Warneke, et al. on page 14594 .