Design and Synthesis of Some Imidazolyl Derivatives: Photophysical Studies and Application in the Detection of Anions



Mohammad Shahid, Rashid Ali, Syed S. Razi, Priyanka Srivastava, Ramesh C. Gupta, Sushil K. Dwivedi, Arvind Misra*
Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi– 221 005, UP, India


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© Shahid et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi – 221 005, UP, India; E-mails: arvindmisra2003@yahoo.com, amisra@bhu.ac.in
† Authors have made equal contribution


Abstract

A fluorescent probe based on dicyanovinylphenanthroimidazole (DCPPI) has been designed and synthesized and its potential application to recognize F- and CN- ions via different channels have been tested in different mediums. DCPPI shows intramolecular charge transfer process and exhibit ratiometric response toward F- and CN- ions. The change in physicochemical properties of DCPPI in the presence of cyanide can be attributed to the formation of Michael type adduct, DCPPIA whereas both F- and CN- ions have shown affinities to interact with NH fragment of imidazolyl unit under the condition. The possible mode of interaction has been confirmed by absorption, emission, NMR and ESI-MS spectral data analysis.

Keywords: DCPPI, F-, CN-, DCPPIA.