Recent advances in room temperature phosphorescence of crystalline boron containing organic compounds

Abstract In organic compounds, room temperature phosphorescence (RTP) is a rare, yet highly desirable, property that is important for a wide variety of applications, including tissue imaging, anticounterfeiting technologies, photodynamic therapy, and organic light‐emitting devices. While most organic RTP molecules rely on heavy atoms or carbonyl functional groups to accelerate singlet‐to‐triplet intersystem crossing, in the past few years there have been several reports of RTP induced by boron‐containing functional groups. This minireview covers the recent literature on RTP of crystalline boroorganic compounds and analyzes the connections between molecular structure, intermolecular interactions, and the resulting phosphorescence.