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The Early Years of 2,2′-Bipyridine—A Ligand in Its Own Lifetime
Open AccessArticle

A Novel Ruthenium(II) Polypyridyl Complex Bearing 1,8-Naphthyridine as a High Selectivity and Sensitivity Fluorescent Chemosensor for Cu2+ and Fe3+ Ions

1
Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution Control, Qujing Normal University, Qujing 655011, China
2
College of Chemistry and Environmental Science, Qujing Normal University, Qujing 655011, China
3
Department of Medicine, Qujing Qilin Vocational and Technical School, Qujing 655000, China
*
Author to whom correspondence should be addressed.
Academic Editors: Victor Mamane and John S. Fossey
Molecules 2019, 24(22), 4032; https://doi.org/10.3390/molecules24224032
Received: 26 September 2019 / Revised: 27 October 2019 / Accepted: 31 October 2019 / Published: 7 November 2019
(This article belongs to the Special Issue Bipyridines: Synthesis, Functionalization and Applications)
A novel ruthenium(II) polypyridyl complex bearing 1,8-naphthyridine was successfully designed and synthesized. This complex was fully characterized by EI-HRMS, NMR, and elemental analyses. The recognition properties of the complex for various metal ions were investigated. The results suggested that the complex displayed high selectivity and sensitivity for Cu2+ and Fe3+ ions with good anti-interference in the CH3CN/H2O (1:1, v/v) solution. The fluorescent chemosensor showed obvious fluorescence quenching when the Cu2+ and Fe3+ ions were added. The detection limits of Cu2+ and Fe3+ were 39.9 nmol/L and 6.68 nmol/L, respectively. This study suggested that this Ru(II) polypyridyl complex can be used as a high selectivity and sensitivity fluorescent chemosensor for Cu2+ and Fe3+ ions. View Full-Text
Keywords: Ru(II) polypyridyl complex; 1,8-naphthyridine; fluorescence; chemosensor; Cu2+; Fe3+ Ru(II) polypyridyl complex; 1,8-naphthyridine; fluorescence; chemosensor; Cu2+; Fe3+
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MDPI and ACS Style

He, C.; Yu, S.; Ma, S.; Liu, Z.; Yao, L.; Cheng, F.; Liu, P. A Novel Ruthenium(II) Polypyridyl Complex Bearing 1,8-Naphthyridine as a High Selectivity and Sensitivity Fluorescent Chemosensor for Cu2+ and Fe3+ Ions. Molecules 2019, 24, 4032.

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