Germylenes Exhibiting Solid‐State Emissions that Extend to NIR

Abstract

AbstractLow‐valent main group compounds that fluoresce in the solid‐state were previously unknown. To address this, we investigated room‐temperature photoluminescence from a series of crystals of germylenes 3–8 in this article; they exhibited emissions nearly reaching the NIR. Germylene carboxylates (3–8) were synthesized by reacting dipyrromethene stabilized germylene pyrrolide (2) with carboxylic acids such as acetic acid, trifluoroacetic acid, benzoic acid, p‐cyanobenzoic acid, p‐nitrobenzoic acid, and acetylsalicylic acid.