Dipole-Driven Self-Organization of Liquid-Crystalline N-Heteroacene Derivatives Showing Redox-Properties

摘要

We report an introduction of halogen atoms to liquidcrystalline (LC) TANC derivatives to tune their electronic characters as well as the charge polarization on π-conjugated N-heteroacene framework. The electronegative Cl atoms can improve the electron-accepting property of LC TANC. Also, the induced charge polarization due to the substitution of Cl atoms generates an intrinsic dipole moment on π-conjugated Nheteroacene framework, which is able to serve as a driving force for stabilizing self-organization of N-heteroacene molecules in thin films.