Issue 34, 2012

Fluoride-responsive gelator and colorimetric sensor based on simple and easy-to-prepare cyano-substituted amide

Abstract

A new and easy-to-prepare gelator based on cyano-substituted amide (BPNIA) was designed and synthesized. BPNIA could form thermoreversible gel in DMSO–H2O (v/v, 9 : 1) and ultrasound-stimulated gel in DMSO. FT-IR, UV–vis and XRD spectra indicated that the gelator molecules self-assemble into a fibrous network resulting from the cooperation of intermolecular hydrogen bonding, π–π stacking and cyano interactions. BPNIA can act as a highly selective colorimetric sensor for fluoride in DMSO, overcoming the interference of H2PO4, AcO and other halide anions. The deprotonation of the NH groups is responsible for the dramatic color change from colorless to yellow. Interestingly, the organogel of BPNIA could allow a two channel fluoride response by proton controlled reversible sol–gel transition and color changes.

Graphical abstract: Fluoride-responsive gelator and colorimetric sensor based on simple and easy-to-prepare cyano-substituted amide

Supplementary files

Article information

Article type
Paper
Submitted
24 May 2012
Accepted
10 Jul 2012
First published
13 Jul 2012

Org. Biomol. Chem., 2012,10, 6973-6979

Fluoride-responsive gelator and colorimetric sensor based on simple and easy-to-prepare cyano-substituted amide

Y. Zhang and S. Jiang, Org. Biomol. Chem., 2012, 10, 6973 DOI: 10.1039/C2OB26016F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements