Issue 84, 2017

A novel self-assembled supramolecular sensor based on thiophene-functionalized imidazophenazine for dual-channel detection of Ag+ in an aqueous solution

Abstract

Herein, a novel self-assembled supramolecular sensor (S1) based on thiophene-functionalized imidazophenazine for Ag+ was designed and synthesized. It showed dual-channel detection properties for Ag+ based on the competitive mechanism of supramolecular self-assembly with high sensitivity and selectivity even in the presence of other metal ions. Its detection limit for Ag+ is 8.18 × 10−9 M. Upon the addition of Ag+, the solution changes from yellow to light purple and the fluorescence is quenched. Furthermore, the sensing mechanism between Ag+ and S1 is investigated via IR and 1H NMR spectroscopy, mass spectrometry, and density functional theory calculations.

Graphical abstract: A novel self-assembled supramolecular sensor based on thiophene-functionalized imidazophenazine for dual-channel detection of Ag+ in an aqueous solution

Supplementary files

Article information

Article type
Paper
Submitted
29 ago 2017
Accepted
07 nov 2017
First published
21 nov 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 53439-53444

A novel self-assembled supramolecular sensor based on thiophene-functionalized imidazophenazine for dual-channel detection of Ag+ in an aqueous solution

H. Shi, W. Li, Q. Li, H. Zhang, Y. Zhang, T. Wei, Q. Lin and H. Yao, RSC Adv., 2017, 7, 53439 DOI: 10.1039/C7RA09597J

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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