期刊
CHEMICAL SCIENCE
卷 7, 期 1, 页码 370-375出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sc03297k
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资金
- Deutsche Forschungsgemeinschaft (DFG) [GO 2634/11]
- Dutch Ministry of Education, Culture and Science [024.001.035]
Smart molecular systems having the ability to report on mechanical strain or failure in polymers via alteration of their optical properties are of great interest in materials science. However, only limited attention has been devoted to targeted chromophore engineering to fine-tune their physicochemical properties. Here, we describe the synthesis of pi-extended anthracenes that can be released from their respective maleimide Diels-Alder adducts through the application of mechanical stress in solution and in the solid state. We demonstrate the improvement of fluorescence quantum yield as well as the tuning of excitation and emission wavelengths while retaining their excellent mechanochemical properties laying the foundation for a new series of mechanophores whose spectral characteristics can be modularly adjusted.
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