ChemInform Abstract: Liquid Crystalline Coronene Derivatives with Extraordinary Fluorescence Properties.

Abstract

other polycyclic compounds other polycyclic compounds Q 1150 -129Liquid Crystalline Coronene Derivatives with Extraordinary Fluorescence Properties.-The title compounds (IV), prepared starting from readily available perylene derivative (I), form depending on the alkyl substituents discotic mesophases and combine properties of both dyes and liquid crystals. They form aggregates in a solid matrix whose photoluminescence wavelength varies depending on the tempering process used. Thus, they are promising compounds for the preparation of multicolored displays on the basis of organic luminescent diodes. Compounds (IV) can be transformed into hitherto unknown dialkylcoronene derivatives, e.g. (V). -(ROHR, U.; SCHLICHTING, P.; BOEHM, A.; GROSS, M.; MEERHOLZ, K.; BRAEUCHLE, C.; MUELLEN, K.; Angew.