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Photoinduced fluorescence modulation through controllable intramolecular [2+2] photocycloaddition in single molecules
Yuzhen Wu1, Xinni Ping1, Chuangye Yao1
1Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China. fenghui@zjnu.cn.
Abstract:
We report a general molecular design strategy of spatial proximity, which allows intramolecular [2+2] photocycloaddition reaction to take place in both single molecules and molecular aggregates. Sharply contrasting photoinduced fluorescence changes in solution and in the solid state were found and attributed to the aggregation-induced quenching property of the monomers and the aggregation-induced emission nature of the photodimers.
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