Recognition of carboxylate anions and carboxylic acids by selenium-based new chromogenic fluorescent sensor: a remarkable fluorescence enhancement of hindered carboxylates.

Abstract

A selenium metal-based new fluorescence sensor 5-pivaloylamino-1,2,5-selenodiazolo[3,4-d]pyrimidin-7-(6H)-one (receptor 1) has been reported for the recognition of monocarboxylic acids and carboxylate anions both by UV-vis and fluorescence methods. Receptor 1 recognizes carboxylate anions more than monocarboxylic acids and it is a selective sensor for carboxylates with specially hindered carboxylate anions. The changes of fluorescence intensity are remarkably enhanced with red shift in presence of bulky carboxylate anions. The X-ray crystal structure of receptor 1 with pivalic acid has been reported.

DOI: 10.1021/ol901737s

Cite this paper

@article{Goswami2009RecognitionOC, title={Recognition of carboxylate anions and carboxylic acids by selenium-based new chromogenic fluorescent sensor: a remarkable fluorescence enhancement of hindered carboxylates.}, author={Shyamaprosad Goswami and Anita Hazra and Rinku Chakrabarty and Hoong-Kun Fun}, journal={Organic letters}, year={2009}, volume={11 19}, pages={4350-3} }