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Tuning the Photophysical Properties of Symmetric Squarylium Dyes: Investigation on the Halogen Modulation Effects |
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| Authors: | Weiben Chen Simeng Zhang Dr. Gaole Dai Dr. Ying Chen Miao Li Xiaoyu Zhao Prof. Yulan Chen Prof. Long Chen |
| Affiliation: | 1. Department of Chemistry, Institute of Molecular Plus, and Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin, 300072 P. R. China These authors contributed equally to this work.;2. Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123 P. R. China;3. Department of Chemistry, Institute of Molecular Plus, and Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin, 300072 P. R. China |
| Abstract: | A series of symmetric squarylium dyes (SQDPA-X) with different halogen (X=F, Cl, Br, I) substituents have been developed. The photophysical properties could be facilely tuned by the halogen modulation effects. The strategy of incorporating different halogen substitutions into AIE active luminogens enables a facile approach for exploring new intriguing organic fluorescent dyes. |
| Keywords: | aggregation-induced emission halogen mechanochromism symmetric squarylium dyes vapochromism |