Article ID Journal Published Year Pages File Type
5222353 Tetrahedron 2009 7 Pages PDF
Abstract

A neutral tripodal Schiff base receptor (3) having catechol as end groups has been synthesized and characterized with the help of spectroscopic and single crystal X-ray crystallographic studies. The receptor behaves as a visually detectable optical sensor for F− ions in DMSO, sensitive enough to recognize the ions up to a concentration 1×10−5 M with naked eye. The chromogenic response is based upon the deprotonation of the highly acidic catechol moieties in the presence of highly basic F− ions in a polar solvent like DMSO.

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Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry