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Ratiometically Fluorescent Sensing of Zn(II) Based on Dual-Emission of 2-Pyridylthiazole Derivatives

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Abstract

A new fluorophore, 4-methyl-2-(2-pyridyl)-5-(2-thiophenyl)thiazole (2-PTT), was reported as a ratiometically fluorescent sensor of zinc(II) based on dual-emission with selectivity and sensitivity. Two emission bands at 440 and 497 nm were observed before and after addition of zinc(II), respectively. Job’s plot disclosed the 1:1 stoichiometry between 2-PTT and zinc(II). The binding constant was evaluated as 2.09 × 105 M−1 based on fluorescence titration experiment.

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Acknowledgments

We thanks the financial supports from the National Natural Science Foundation of China (NSFC 21062023).

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Authors and Affiliations

  1. Department of Chemistry, Yanbian University, Yanji City, Jilin Province, 133002, China

    Ming-Hua Zheng, Xiang Hu, Ming-Yang Yang & Jing-Yi Jin

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  1. Ming-Hua Zheng
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  2. Xiang Hu
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Correspondence to Jing-Yi Jin.

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Zheng, MH., Hu, X., Yang, MY. et al. Ratiometically Fluorescent Sensing of Zn(II) Based on Dual-Emission of 2-Pyridylthiazole Derivatives. J Fluoresc 25, 1831–1834 (2015). https://doi.org/10.1007/s10895-015-1675-1

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  • DOI: https://doi.org/10.1007/s10895-015-1675-1

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