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Article Abstract
A new diarylethene derivative 1O decorated with a salicylaldehyde hydrazine moiety was designed and synthesized successfully, and its structure was confirmed by NMR. Diarylethene 1O showed eminent photochromism and high selectivity and sensitivity for Al with turn-on fluorescent performance. As the concentration of Al in 1O solution increased, the color of solution remarkably changed from dark to bright green with 313-fold fluorescent emission intensity enhancement. The 1:1 combination stoichiometry between 1O and Al was verified by Job's plot and MS analysis. The association constant between 1O and Al was 3.9 × 10 mol L, and the limit of detection toward Al was 7.98 × 10 mol L. Meanwhile, the probe can be utilized in practical water and logic circuits.
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