Jump to main content
Jump to site search

Issue 2, 2013
Previous Article Next Article

Imine containing benzophenone scaffold as an efficient chemical device to detect selectively Al3+

Author affiliations

Abstract

A benzophenone-based Schiff base 1 has been utilized as a fluorescence chemosensor for the selective detection of Al3+. The probe was synthesized in one step, and found to be non-fluorescent due to a combination of photoinduced electron transfer (PET), excited state intramolecular proton transfer (ESIPT) and E/Z isomerism. Upon addition of Al3+ to a methanolic solution of 1, the development of a strong fluorescence signal was observed with an attractive glowing green emission. This was due to the inhibition of PET, ESIPT and E/Z isomerism, and the activation of chelation enhanced fluorescence (CHEF). The quantum yield of 1–Al3+ was found to be 0.17. The selectivity was tested with 24 different metal and non-metal ions, and established using various spectroscopic tools. The strong affinity of compound 1 for Al3+ was also proven by 1H NMR and mass spectroscopy.

Graphical abstract: Imine containing benzophenone scaffold as an efficient chemical device to detect selectively Al3+

Back to tab navigation

Supplementary files

Article information


Submitted
28 Aug 2012
Accepted
06 Nov 2012
First published
07 Nov 2012

RSC Adv., 2013,3, 345-351
Article type
Communication

Imine containing benzophenone scaffold as an efficient chemical device to detect selectively Al3+

S. Sinha, R. R. Koner, S. Kumar, J. Mathew, M. P. V., I. Kazi and S. Ghosh, RSC Adv., 2013, 3, 345
DOI: 10.1039/C2RA21967K

Social activity

Search articles by author

Spotlight

Advertisements