Literature DB >> 28401409

Furan and Julolidine-Based "Turn-on" Fluorescence Chemosensor for Detection of F- in a Near-Perfect Aqueous Solution.

Ha Young Jeong1, Seong Youl Lee1, Cheal Kim2.   

Abstract

A new fluorescent sensor 1, containing furan and julolidine moieties linked through a Schiff-base, has been synthesized. Distinct "turn-on" fluorescence enhancement of 1 was observed upon the addition of F- in a near-perfect aqueous solution. The binding capabilities of 1 with F- were studied by using fluorescent spectroscopic techniques, ESI-mass analysis and NMR titration measurements. The detection limit for the analysis of F- was found to be 10.02 μM, which is below the WHO guideline (79 μM) for drinking water. Practically, the sensing ability of 1 for F- was successfully applied in real water samples. The sensing mechanism for F- was proposed to be the ICT mechanism via the hydrogen bonding, which was well explained by theoretical calculations.

Entities:  

Keywords:  Fluoride; Fluorometric; Furan; Julolidine; Theoretical calculations

Year:  2017        PMID： 28401409     DOI： 10.1007/s10895-017-2085-3

Source DB:  PubMed          Journal:  J Fluoresc        ISSN： 1053-0509            Impact factor:   2.217


  18 in total

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