A Schiff-based sensor with turn-on fluorescence for selective detection of Hg2

ABSTRACT A simple Schiff‐base colorimetric receptor 1 was prepared. It exhibits an ‘off–on‐type’ mode with high sensitivity in the presence of Hg2+. The change in color is very easily observed by the naked eye in the presence of Hg2+, whereas other metal cations do not induce such a change. A Job pl...

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Veröffentlicht in:	Luminescence (Chichester, England) England), 2014-09, Vol.29 (6), p.698-701
Hauptverfasser:	Wan, Chin-Feng, Lin, Hsiang-Yi, Chien, Cho, Wu, An-Tai
Format:	Artikel
Sprache:	eng
Schlagworte:	colorimetric Colorimetry Fluorescence Fluorescent Dyes - chemical synthesis Fluorescent Dyes - chemistry Magnetic Resonance Spectroscopy Mercury - analysis Molecular Structure Naphthalenes - chemistry Pyridines - chemistry Schiff Bases - chemical synthesis Schiff Bases - chemistry Schiff's base Spectrophotometry, Ultraviolet turn-on
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Zusammenfassung:	ABSTRACT A simple Schiff‐base colorimetric receptor 1 was prepared. It exhibits an ‘off–on‐type’ mode with high sensitivity in the presence of Hg2+. The change in color is very easily observed by the naked eye in the presence of Hg2+, whereas other metal cations do not induce such a change. A Job plot indicated a 1 : 1 complexation stoichiometry between receptor 1 and Hg2+. The association constant for 1–Hg2+ in Tetrahydrofuran (THF) was determined to be 1.3 × 109 M‐1 using a Hill plot. Copyright © 2013 John Wiley & Sons, Ltd.
ISSN:	1522-7235 1522-7243
DOI:	10.1002/bio.2592