Organic π systems with an open-shell ground state have attractive properties that could find use applications such as nonlinear optics, spintronics devices and photovoltaics. Polycyclic aromatic hydrocarbons with unpaired or partially unpaired electrons display open-shell radical character. In this Hot Feature Article, Zhe Sun and Jishan Wu at the National University of Singapore summarize recent developments in open-shell polycyclic aromatic hydrocarbons covering both theoretical advances and the experimental progress, and touch on a few examples of their practical applications. Read for free until 1st March. (Free registration required)
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