“…Due to their stable low band-gaps, tunability, and structural features, PASs have long been the workhorses of organic electronics. [13][14][15][16] In recent years, specific classes of PASs, such as indacenes 17,18 and indenofluorenes, 19,20 have shown great promise in optical and electronic devices. Furthermore, as the aromaticity is tightly linked to the electronic behavior of these compounds, 21 it serves as a useful metric for rational design of new molecules.…”