Two-dimensional homo-and heteronuclear NMR chemical shift correlation techniques were applied in the characterization of five tricyclic polychlorinated C 10 hydrocarbons, chlordene (1), heptachlor (2), trans-nonachlor (3), ˛-chlordene (4) and -chlordene (5), which are spread globally in the environm
14N NMR and Two-Dimensional Suspension 1H and 13C HRMAS NMR Spectroscopy of Ionic Liquids Immobilized on Silica
✍ Scribed by Stefano Brenna; Tobias Posset; Julien Furrer; Janet Blümel
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 270 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0947-6539
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✦ Synopsis
Abstract
A variety of popular ionic liquids have been synthesized and characterized, including by optimized ^14^N NMR spectroscopy of the neat and dissolved ionic liquids. Ionic liquids incorporating Si(OEt)~3~ groups have been immobilized on silica in a well‐defined manner with the imidazolium moiety remaining intact. This has been proved by optimized one‐ and two‐dimensional ^1^H and ^13^C HRMAS NMR spectroscopy of the materials suspended in suitable solvents.
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