✦ LIBER ✦
One-pot synthesis of a red-fluorescent chemosensor from an azacrown, phloroglucinol and squaric acid: A simple in-solution construction of a functional molecular device
✍ Scribed by Umut Oguz; Engin U Akkaya
- Book ID
- 104257275
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 210 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
A long wavelength fluorescent, squaraine-based chemosensor has been synthesized in one step from commercially available precursors. The resulting squaraine derivative absorbs maximally at 635 nm (g= 260,000) and the emission peak is at 665 nm. This azacrown-appended squaraine signals alkaline and earth-alkaline metal ions in millimolar concentrations in acetonitrile.