Front Cover: Near‐Infrared Circularly Polarized Luminescence through Intramolecular Excimer Formation of Oligo(p‐phenyleneethynylene)‐Based Double Helicates (Chem. Eur. J. 39/2019)
Abstract:Carbon‐based double helicates consisting of oligo(p‐phenyleneethynylene)s and “flexible” 2,2’‐binaphthyls or “rigid” 9,9′‐spirobifluorenes were synthesized. The “rigid” double helicate acts as a bright macrocyclic fluorophore. The “flexible” double helicate forms a tightly interlocked intramolecular excimer under photoirradiation, emitting near‐infrared circularly polarized luminescence with high dissymmetry factor value. More information can be found in the Full Paper by K. Miki, K. Ohe, et al. on page 9211.
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