posted on 2017-04-03, 20:20authored byBin 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.