Issue 8, 2014
From the journal:

RSC Advances

New 2,2′:6′,2′′-terpyridines as colorimetric and fluorescent sensors for fluoride ions†

Qian-Yong Cao,*a   Ming Li,a   Li Zhoua  and  Zhong-Wei Wang*b  

* Corresponding authors

a Department of Chemistry, Nanchang University, Nanchang 330031, P. R. China
E-mail: cqyong@ncu.edu.cn
Fax: +86 791-83969386

b College of Material Science and Technology, Shandong University of Science and Technology, Qingdao, P. R. China
E-mail: wangzhongwei@fusilinchem.com

Abstract

Two new 2,2′:6′,2′′-terpyridine receptors bearing phenol groups, 1 and 2, have been prepared by coupling 4′-(4-aminophenyl)-2,2′:6′,2′′-terpyridine with salicylaldehyde or 4-hydroxybenzaldehyde. Both receptors show colorimetric and fluorescent response to F− over other anions in organic solvent. In addition, a strong intramolecular N⋯H–O hydrogen bond was found in 1, which is attributed to its weaker binding ability to F− than that of 2, and an Excited-State Intramolecular Proton Transfer (ESIPT) emission quenching process.

Graphical abstract: New 2,2′:6′,2′′-terpyridines as colorimetric and fluorescent sensors for fluoride ions

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Article information

DOI
https://doi.org/10.1039/C3RA45143G
Article type
Communication
Submitted
16 Sep 2013
Accepted
02 Dec 2013
First published
04 Dec 2013

RSC Adv., 2014,4, 4041-4046

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New 2,2′:6′,2′′-terpyridines as colorimetric and fluorescent sensors for fluoride ions

Q. Cao, M. Li, L. Zhou and Z. Wang, RSC Adv., 2014, 4, 4041 DOI: 10.1039/C3RA45143G

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