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A Star-Shaped Molecule with Low-Lying Lowest Unoccupied Molecular Orbital Level, n‑Type Panchromatic Electrochromism, and Long-Term Stability

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journal contribution
posted on 03.04.2017, 20:20 by Bin Yao, Yue Zhou, Xichong Ye, Rong Wang, Jie Zhang, Xinhua Wan
An electron-deficient star-shaped molecule based on anthraquinone imide was synthesized and characterized. It showed high electron accommodating capacity and strong electron-withdrawing ability with a low-lying lowest unoccupied molecular orbital (LUMO) of −4.10 eV. In addition, it exhibited panchromatic electrochromism attributed to the simultaneous presence of π*−π* transitions and intervalence charge transfer (IV-CT) upon one-electron reduction, and revealed long-term stability in electron gain and loss due to the proper LUMO energy level and ordered intermolecular assembly.