A pyrene-based fluorescent sensor for Zn2+ ions: a molecular ‘butterfly’

Erendra Manandhar; J. Hugh Broome; Jalin Myrick; Whitney Lagrone; Peter J. Cragg; Karl J. Wallace

doi:10.1039/C1CC13286E

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A pyrene-based fluorescent sensor for Zn²⁺ ions: a molecular ‘butterfly’†

Erendra Manandhar,^a J. Hugh Broome,^a Jalin Myrick,^a Whitney Lagrone,^a Peter J. Cragg*^b and Karl J. Wallace*^a

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* Corresponding authors

^a Department of Chemistry and Biochemistry, 118 College Drive, Hattiesburg, USA
E-mail: karl.wallace@usm.edu
Fax: 1- 601- 266- 6075
Tel: 1-601-266-4715

^b School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK
E-mail: p.j.cragg@brighton.ac.uk
Fax: +441273679333
Tel: +441273642037

Abstract

A simple pyrene-based triazole receptor has been synthesised and shown to self-assemble in the presence of ZnCl₂ in an exclusively 2 : 1 ratio, whereas a mixture of 2 : 1 and 1 : 1 ratios are observed for other Zn²⁺ salts. The pyrene units are syn in orientation; this is supported by a strong excimer signal observed at 410 nm in the presence of ZnCl₂ in acetonitrile. DFT calculations and 2D NMR support the proposed structure.

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Article information

DOI: https://doi.org/10.1039/C1CC13286E
Article type: Communication
Submitted: 02 Jun 2011
Accepted: 22 Jun 2011
First published: 07 Jul 2011

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Chem. Commun., 2011,47, 8796-8798

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A pyrene-based fluorescent sensor for Zn²⁺ ions: a molecular ‘butterfly’

E. Manandhar, J. H. Broome, J. Myrick, W. Lagrone, P. J. Cragg and K. J. Wallace, Chem. Commun., 2011, 47, 8796 DOI: 10.1039/C1CC13286E

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