From molecule to complex : Design of smart fluorescent anion-sensors

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

  • Shuting Pang
  • Yuhui Zheng
  • Zhan Zhou
  • Qianming Wang
  • Xiaodong Li

Detail(s)

Original languageEnglish
Pages (from-to)1157-1161
Journal / PublicationOptical Materials
Volume35
Issue number6
Online published17 Feb 2013
Publication statusPublished - Apr 2013
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84875436506&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(36b56398-b71c-4201-84b1-802223998d1e).html

Abstract

A novel 2-(2-pyridyl)benzimidazole (a) compound with hydrogen bond unit was synthesized as an anion receptor. It is noteworthy that only fluoride anions can led to its fluorescence change from ultraviolet (362 nm) to visible region (408 nm) compared with AcO-, Cl-, Br-, and I-. Spectroscopic studies demonstrated that the recognition process can be attributed to the hydrogen bonding interactions between F- and the imidazole-NH. More importantly, this ligand can coordinate to europium ion and a novel europium complex Eu(a)3(NO3)3·H2O possessing red emission was prepared. We noted that the luminescence of this complex can be completely quenched by F- as well as AcO-. However, we recognized that the competitive coordination interactions between anions and ligand resulted in the quenching effects. © 2013 Elsevier B.V. All rights reserved.

Research Area(s)

  • Fluorescence, Fluorides, Optical materials, Organic compounds, Sensor

Fingerprint

Publication fingerprints text

100
Hydrogen Bonding Chemistry
100
Europium Chemistry
50
Imidazole Chemistry
50
Benzimidazole Chemistry
Full Fingerprint ›

Citation Format(s)

[ RIS ] [ BibTeX ]
From molecule to complex: Design of smart fluorescent anion-sensors. / Pang, Shuting; Zheng, Yuhui; Zhou, Zhan et al.
In: Optical Materials, Vol. 35, No. 6, 04.2013, p. 1157-1161.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review