Fluorescent sensor for α,ω-dicarboxylate anions
- 9 February 2001
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 25 (3) , 471-475
- https://doi.org/10.1039/b007727p
Abstract
The synthesis and photophysical behavior of several naphthylurea derivatives used as chemosensors for detecting anionic species is reported. In particular, compound 3 shows a photoinduced electron transfer (PET) process. The photophysical properties of 3 upon the addition of dicarboxylate anions have been studied. Results show that fluorescence quenching of the naphthyl moiety and appearance of a new emission is induced by the formation of a complex. The obtained fluorescence and 1H-NMR data indicate that a 1:1 stoichiometry complex is formed between compound 3 and dicarboxylate anions through a hydrogen-bonding interaction. The selectivity of 3 for recognition of different dicarboxylates depends on the chain length of the anionic species.Keywords
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