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Updated: May 22, 2025

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Published on: September 12, 2014
Curved π-Conjugated Dehydrobenzoannulene as an Electron Acceptor Enabling Fluorescence and Electrochemiluminescence
Peng Xu1, Ningwen Sun1, Xuan Cao1
1Department of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China.
Abstract:
Using dehydrobenzoannulene as an acceptor, two curved π-conjugated electron donor-acceptor architectures were concisely synthesized, and an unexpected deshielding effect was observed in the annulene fragment. Anomalously, the π-extended homologue exhibited blue-shifted fluorescence. Intriguingly, stunning and stable electrochemiluminescence emissions were first discovered in nonaromatic annulene derivatives. Finally, based on those electrochemiluminescence properties, a highly efficient sensor for detecting dopamine was constructed. This work provides new insights into molecular carbons and promotes the development of sensing in biological analysis.
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