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A Highly Selective Perylenediimide-Based Chemosensor: "Naked-Eye" Colorimetric and Fluorescent Turn-On Recognition for Al3.

ABSTRACT: A novel "turn-on" fluorescent probe (PCN) was designed, synthesized, and characterized with perylene tetracarboxylic disimide as the fluorophore and Schiff base subunit as the metal ion receptor. The probe demonstrated a considerable fluorescence enhancement in the presence of Al3+ in DMF with high selectivity and sensitivity. Furthermore, the considerably "off-on" fluorescence response simultaneously led to the apparent color change from colorless to brilliant yellow, which could also be identified by naked eye easily. The sensing capability of PCN to Al3+ was evaluated by the changes in ultraviolet-visible, fluorescence, Fourier transform-infrared, proton nuclear magnetic resonance, and high-resolution mass spectrometry spectroscopies. The linear concentration range for Al3+ was 0-63 ?M with a detection limit of 0.16 ?M, which allowed for the quantitative determination of Al3+.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC7516037 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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A Highly Selective Perylenediimide-Based Chemosensor: "Naked-Eye" Colorimetric and Fluorescent Turn-On Recognition for Al<sup>3</sup>.

Liu Yan Y   Gao Shuang S   Yang Liu L   Liu Yu-Long YL   Liang Xiao-Min XM   Ye Fei F   Fu Ying Y  

Frontiers in chemistry 20200911

A novel "turn-on" fluorescent probe (<b>PCN</b>) was designed, synthesized, and characterized with perylene tetracarboxylic disimide as the fluorophore and Schiff base subunit as the metal ion receptor. The probe demonstrated a considerable fluorescence enhancement in the presence of Al<sup>3+</sup> in DMF with high selectivity and sensitivity. Furthermore, the considerably "off-on" fluorescence response simultaneously led to the apparent color change from colorless to brilliant yellow, which co  ...[more]

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