Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Fluorescence-enhanced chemosensor for metal cation detection based on pyridine and carbazole

Language

English

Abstract

A series of donor-acceptor systems incorporating a carbazole moiety as the donating unit and pyridine moiety as the accepting unit have been designed and synthesized. The spectroscopic and electrochemical behaviors of the carbazole derivatives demonstrate that the carbazole unit interacts with the electron-accepting group through the π-conjugated spacer, thus leading to the intramolecular charge transfer (ICT). The pyridine-substituted carbazole derivatives show significant sensing and coordinating properties toward a wide range of metal cations. Compound S2 exhibits fluorescence enhancement upon association with transition metal cations, and compound V3 shows high selectivity for Cu2+ among this series of materials. DFT calculations indicate the different association abilities of the dyes and the enhancement of ICT upon addition of the metal cations. © 2013 American Chemical Society.

Publication Date

2013

Source Publication Title

Journal of Organic Chemistry

Volume

78

Issue

22

Start Page

11318

End Page

11325

Publisher

American Chemical Society

DOI

10.1021/jo401808c

Link to Publisher's Edition

http://dx.doi.org/10.1021/jo401808c

ISSN (print)

00223263

ISSN (electronic)

15206904

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