| Autor: |
Tian, Xiaochang, Li, Jianye, Gu, Cancan, Yin, Guohui, Zhang, Yuecheng, Zhao, Jiquan, Cao, Xiaohui |
| Předmět: |
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| Zdroj: |
New Journal of Chemistry; 3/7/2023, Vol. 47 Issue 9, p4245-4251, 7p |
| Abstrakt: |
The hexaarylbenzene (HAB)-based push–pull fluorophore HAB-MeO-TPy with the 2,2′:6′,2″-terpyridine (TPy) unit as an acceptor and the methoxy (MeO) group as a donor was developed. It was observed that HAB-MeO-TPy exhibited an unusual uphill-type emission with increasing solvent polarity from cyclohexane to DMSO. By comparison with a previously reported fluorophore HPB-MeO-DCV, a structure–property relationship regarding this uncommon fluorescence behavior was disclosed. Furthermore, the sensing properties of HAB-MeO-TPy for metal ions were also investigated. In the presence of Fe2+, HAB-MeO-TPy displayed a visual color change from colorless to magenta, indicating that HAB-MeO-TPy can act as a "naked eye" sensor for Fe2+ detection. From absorption titration experiments, the detection limit was determined to be 1.50 × 10−7 M. In addition, HAB-MeO-TPy was successfully applied to detect Fe2+ in real water samples. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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