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Alternating Donor-Acceptor Carbon Nanohoops: Synthesis and Photophysical and Supramolecular Properties
Bing Yuan1, Jinyi Wang1, Xinyu Zhang1
1Key Laboratory of Precision and Intelligent Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China.
Abstract:
Herein, we report alternating boron dipyrromethene (BODIPY)-based donor-acceptor (D-A) carbon nanohoops, BCN-1 and BCN-2. These D-A nanohoops exhibit a narrow HOMO-LUMO gap, high molar extinction coefficients, broad visible-region absorption, and solvatochromism. DFT calculations reveal that BCN-2 possesses a cavity size comparable to that of [13]CPP, making it a suitable host for nesting [8]CPP to form a binary complex with a high binding constant, demonstrating strong host-guest interactions.
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