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Oxa[7]superhelicene: A π‐Extended Helical Chromophore Based on Hexa‐peri‐hexabenzocoronenes |
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| Authors: | David Reger Philipp Haines Dr Frank W Heinemann Prof?Dr Dirk M Guldi Prof?Dr Norbert Jux |
| Affiliation: | 1. Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universit?t Erlangen-Nürnberg, Erlangen, Germany;2. Department Chemie und Pharmazie, Friedrich-Alexander-Universit?t Erlangen-Nürnberg, Erlangen, Germany |
| Abstract: | A novel π‐extended “superhelicene” based on hexa‐peri‐hexabenzocoronenes (HBCs) has been synthesized by an efficient four‐step synthetic procedure starting from diphenyl ether. Comprehensive structural analysis of the helicene was performed by NMR spectroscopy and mass spectrometry measurements together with X‐ray analysis. Physicochemical analysis of the superhelicene and suitable HBC references revealed it had outstanding fluorescent features with quantum yields of over 80 %. |
| Keywords: | fluorescence helical structures photophysics polycyclic aromatic hydrocarbons π -extension |
