Pyridylphenyl appended imidazoquinazoline based ratiometric fluorescence “turn on” chemosensor for Hg2+ and Al3+ in aqueous media

Amit Kumar; Rampal Pandey; Ashish Kumar; Daya Shankar Pandey

doi:10.1039/C4RA09804H

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Pyridylphenyl appended imidazoquinazoline based ratiometric fluorescence “turn on” chemosensor for Hg²⁺ and Al³⁺ in aqueous media†

Amit Kumar,^a Rampal Pandey,^a Ashish Kumar^a and Daya Shankar Pandey*^a

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* Corresponding authors

^a Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi 221 005, India
E-mail: dspbhu@bhu.ac.in, dsprewa@yahoo.com
Fax: +91 542 2368174
Tel: +91 542 6702480

Abstract

A highly fluorescent and efficient ratiometric ‘turn on’ probe for Hg²⁺ and Al³⁺ based on quinazoline (1) has been designed and synthesized. Limit of detection (LOD) and association constants revealed its superior binding affinity and sensitivity toward Hg²⁺ over Al³⁺. Interference studies signified displacement of the complexed Al³⁺ by Hg²⁺ which has been supported by various studies.

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Article information

DOI: https://doi.org/10.1039/C4RA09804H
Article type: Communication
Submitted: 04 Sep 2014
Accepted: 21 Oct 2014
First published: 21 Oct 2014

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RSC Adv., 2014,4, 55967-55970

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Pyridylphenyl appended imidazoquinazoline based ratiometric fluorescence “turn on” chemosensor for Hg²⁺ and Al³⁺ in aqueous media

A. Kumar, R. Pandey, A. Kumar and D. S. Pandey, RSC Adv., 2014, 4, 55967 DOI: 10.1039/C4RA09804H

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