Design, synthesis and photophysical studies of simple fluorescent anion PET sensors using charge neutral thiourea receptors

…, AP Davis, GM Hussey, J Tierney, M Glynn

Index: Gunnlaugsson, Thorfinnur; Davis, Anthony P; Hussey, Gillian M; Tierney, Juliann; Glynn, Mark Organic and biomolecular chemistry, 2004 , vol. 2, # 13 p. 1856 - 1863

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Citation Number: 199

Abstract

The synthesis of four fluorescent photoinduced electron transfer (PET) chemosensors 1–4 for anions is described. These are all based on a simple design employing charge neutral aliphatic or aromatic thiourea anion receptors connected to an anthracene fluorophore via a methylene spacer. Here the anion recognition occurred through 1: 1 hydrogen bonding between the thiourea protons and the anion, as demonstrated by observing the changes ...