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A Rhodamine-Cyclen Conjugate as Chromogenic and Fluorescent Chemosensor for Copper Ion in Aqueous Media |
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| Authors: | Min Wang Di Zhang Man Li Min Fan Yong Ye Yu-fen Zhao |
| Institution: | 1. Phosphorus Chemical Engineering Research Center of Henan Province, Department of Chemistry, Zhengzhou University, Zhengzhou, 450052, China 3. Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China 2. Key Lab Chem Biol, Fujian Prov Coll Chem & Chem Engn, Xiamen University, Xiamen, 361005, China |
| Abstract: | A novel compound 1 containing rhodamine B and macrocyclic groups has been synthesized. It was found to exhibit a reversible colorimetric response, high selectivity and sensitivity for Cu(II) ion over other commonly coexistent metal ions. The colorimetric and fluorescent response to Cu(II) can be conveniently detected even by the naked eye, which provided a facile method for visual detection of Cu(II). Approximate 71 and 53-fold enhancement in the absorbance at about 557 nm and fluorescence intensity at about 580 nm were estimated when Cu(II) ion was added to the aqueous media of compound 1. The detection limit was calculated to be 2 μM. |
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