Article ID Journal Published Year Pages File Type
5276644 Tetrahedron Letters 2007 4 Pages PDF
Abstract

A new fluorescent chemosensor, 1,10-phenanthroline-4,7-dione (1), which is capable of the ratiometric sensing of anions in aqueous MeCN, was developed. Chemosensor 1 recognized an anion via two NH groups in the molecule, and showed a much higher affinity for F− than that of 4-quinolone, which binds to an anion at one NH group of the molecule. Upon binding to F−, the intensity of the emission band ascribed to the complex of 1-F− was drastically enhanced, while the emission intensity of unbound 1 gradually decreased. The changes in these two emission bands enabled the successful ratiometric sensing.

Graphical abstractDownload full-size image

Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
Authors
, , , ,