Preparation of Phenylenevinylene Derivatives Having Fluorescence and Chiral Induction Function

A series of chiral rod-like compounds with fluorescence was synthesized. The chemical structures of the materials thus synthesized were confirmed with 1H nuclear magnetic resonance spectroscopy (NMR), 13C NMR, and two-dimensional heteronuclear multiple quantum correlation (HMQC) methods. Furthermore, guest-host type liquid crystal (LC) devices were prepared using these compounds and electric field driven optical rotation switching of the LC devices based on change in helix-uniaxial orientation was demonstrated. The large optical rotation is derived from the helical structure of the ordered cholesteric LC. (Supplemental materials are available for this article. Go to the publisher's online edition of the Journal of Dispersion Science and Technology to view the free supplemental file.)