Kasha's rule explains how molecules emit light as they transition to different excited states. Think of it as a staircase, with each step representing a lower energy state. Ordinarily, molecules descend these steps, emitting light as they return to the base level.To explain azulene's peculiar behavior, the IOCB Prague researchers employed the concept of aromaticity.
This unique behavior of azulene holds immense promise for harnessing light energy. In an era where energy capture from photons, such as, is of paramount importance, these findings offer a path to maximizing energy utilization. The team leveraged several unique programs to study the behavior of electrons in higher excited states—an area that remains largely uncharted. Their work holds the promise of further investigations in this critical realm.