| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 176139 | Dyes and Pigments | 2014 | 7 Pages |
•A novel diarylethene with a stilbene-linked terpyridine chromophore was synthesized.•It can serve as a fluorescence chemosensor for highly selective recognition of Hg2+.•A complicated logic circuit was constructed based on this diarylethene.
A novel asymmetrical diarylethene with a stilbene-linked terpyridine chromophore has been synthesized by Heck reaction. It exhibited effectively switchable fluorescence when triggered by UV/Vis and Hg2+/EDTA. Induced by Hg2+, its emission peak was red-shifted by 60 nm and emission intensity was enhanced by 4-fold with a concomitant color change from light blue to bright green due to the formation of a 1:2 metal/ligand complex. As a result, the diarylethene can serve as a fluorescence chemosensor for highly selective recognition of Hg2+ in dichloromethane. Moreover, a complicated logic circuit was constructed with the unimolecular platform by using the fluorescence intensity at 514 nm as outputs and the combinational stimuli of light and chemical species as inputs.
Graphical abstractA novel asymmetrical diarylethene with a stilbene-linked terpyridine chromophore has been synthesized by Heck reaction. It exhibited effectively switchable fluorescence when triggered by UV/Vis and Hg2+/EDTA. As a result, the diarylethene can serve as a fluorescence chemosensor for highly selective recognition of Hg2+ in dichloromethane.Figure optionsDownload full-size imageDownload as PowerPoint slide
