4.8 Article

Na+ Triggered Fluorescence Sensors for Mg2+ Detection Based on a Coumarin Salen Moiety

Journal

ORGANIC LETTERS
Volume 13, Issue 9, Pages 2252-2255

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol200530g

Keywords

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Funding

  1. National Natural Science Foundation of China [20832001, 20972065, 21074054]
  2. National Basic Research Program of China [2007CB925103, 2010CB923303]

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Two coumarin salen-based sensors CS1 and CS2 can exhibit a pronounced fluorescence enhancement response toward Mg2+ as high as 36-fold (CS1) and 111-fold (CS2) in the presence of Na+ as a synergic trigger. More importantly, the fluorescent color of CS1 was bright green instead of weak yellow after the addition of Mg2+ and Na+ together, which can be easily detected by the naked eye.

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