1. A dicyanisophorone based fluorescent probe for naked–eye recognition and near–infrared fluorescence detection of palladium.
- Author
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He, Xinsen, Yan, Qin, Zhao, Wenjing, Yi, Dong, Yang, Youzhe, He, Bing, Lv, Muhan, Hu, Xinyue, Liang, Sicheng, and Zhong, Xiaolin
- Subjects
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FLUORESCENT probes , *PALLADIUM , *INTRAMOLECULAR charge transfer , *FLUORESCENCE , *NONFERROUS metals , *COLORIMETRY , *INTRAMOLECULAR proton transfer reactions - Abstract
The eco–environmental toxicity of the rare metal palladium (Pd) has received extensive attention, thereby requiring simple and practical methods for detecting Pd. Herein, a new probe (HPD) based on dicyanoisophorone dye was designed and synthesized for the detection of Pd. HPD provides several advantages for tracking Pd, including near–infrared (NIR) emission (λ ex = 670 nm, λ em = 700 nm), naked–eye recognition, and comprehensive detection of 0/2/4 valence Pd with good selectivity and anti–interference. The reaction–sensing mechanism of HPD for Pd was further studied using density functional theory calculations. HPD was demonstrated to be a promising tool for the detection of Pd in real water samples, as well as the imaging of Pd in living cells and animals. [Display omitted] • A novel intramolecular charge transfer (ICT) based fluorescence probe was developed to detect palladium (Pd). • Near–infrared (NIR) emission and naked–eye detection of Pd are performed. • The detection mechanism of the probe was verified by experiments and calculations. • The probe can detect Pd in real water samples, living cells and animals. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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