Layered Electron Acceptors by Dimerization of Acenes End‐ Capped with 1,2,5‐Thiadiazoles |
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| Authors: | Debin Xia Prof?Dr Xin Guo Prof?Dr Long Chen Prof?Dr Martin Baumgarten Dr Ashok Keerthi Prof?Dr Klaus Müllen |
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| Institution: | 1. Max Planck Institute for Polymer Research, Mainz, Germany;2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China;3. Department of Chemistry, School of Science, Tianjin University, Tianjin, China |
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| Abstract: | Layered electron acceptors D1 – 4 equipped with terminal 1,2,5‐thiadiazole groups have been constructed using a one‐pot protocol of acene dimerization. Their molecular structures are determined using single‐crystal X‐ray diffraction analysis. Photophysical and electrochemical properties of these molecules present a marked dependence on conjugation length and molecular geometry. An aggregation‐induced emission peak and an intramolecular excimer emission (IEE) band were observed for D2 and D4 , respectively. This work paves the way for the efficient synthesis of layered heteroacenes. |
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| Keywords: | acenes cyclization dimerization excimers organic semiconductors |
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