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Front. Chem. | doi: 10.3389/fchem.2019.00354

Squaramide – Napthalimide Conjugates as ‘Turn-On’ Fluorescent Sensors for Bromide Through an Aggregation-Disaggregation Approach.

 Robert Elmes1*, Martina Schroeder1, Lokesh K. Kumawat1,  Anthony A. Abogunrin1, Michelle Kickham1, Jyotsna Pardeshi1 and Orla Fenelon1
  • 1Maynooth University, Ireland

The syntheses of two new squaramide-naphthalimide conjugates (SQ1 and SQ2) are reported where both compounds have been shown to act as selective fluorescence ‘turn on’ probes for bromide in aqueous DMSO solution through a disaggregation induced response.

Keywords: Bromide Sensing, Disaggregation, Aggregation, Anion recognition, Fluorescent sensor, 1,8-Naphthalimide, Squaramide, supramolecular chemistry, Sensor, Anion sensing

Received: 15 Feb 2019; Accepted: 29 Apr 2019.

Edited by:

Tony D. James, University of Bath, United Kingdom

Reviewed by:

Philip A. Gale, University of Sydney, Australia
Valeria Amendola, University of Pavia, Italy  

Copyright: © 2019 Elmes, Schroeder, Kumawat, Abogunrin, Kickham, Pardeshi and Fenelon. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Robert Elmes, Maynooth University, Maynooth, Ireland, robert.elmes@nuim.ie