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A New High Selective and Sensitive Fluorescent Probe for Al3+ based on Photochromic Salicylaldehyde Hydrazyl Diarylethene
Ist Teil von
Journal of fluorescence, 2022-11, Vol.32 (6), p.2213-2222
Ort / Verlag
New York: Springer US
Erscheinungsjahr
2022
Link zum Volltext
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
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
3+
with turn-on fluorescent performance. As the concentration of Al
3+
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
3+
was verified by Job's plot and MS analysis. The association constant between
1O
and Al
3+
was 3.9 × 10
2
mol
−1
L, and the limit of detection toward Al
3+
was 7.98 × 10
–9
mol L
−1
. Meanwhile, the probe can be utilized in practical water and logic circuits.