1H NMR of Deep Eutectic Solvents

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Date
2014-04-11
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American English
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Office of the Vice Chancellor for Research
Abstract

Deep Eutectic Solvents (DESs) form between a variety of quaternary ammonium or phosphonium salts and hydrogen-bond donors. Over the past decade, DESs have been studied as green solvents with potential applications in industrial processes, chemical extractions, and pharmaceuticals. The recent suggestion that many plants produce natural deep eutectic solvents (NADES) from primary metabolites led to investigation of the potential uses of DESs in biophysics research. This study examined the 1H NMR spectra of the choline chloride:urea 1:2, and choline chloride:ethylene glycol 1:3 molar ratio DES. Spectra of the choline chloride:urea 1:2 with various solutes were acquired to see what effect these solutes had on the DESs NMR spectrum. For both DESs tested, the NMR spectra were a superposition of the spectra of the components. DES-solute spectra showed that interaction between components persisted, indicating the solvent properties of the DESs were not lost upon addition of solutes.

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Wallis, J.L., Sapir, L., Harries, D., Petrache, H.I., Ray, B.D. (2014, April 11). 1H NMR of Deep Eutectic Solvents. Poster session presented at IUPUI Research Day 2014, Indianapolis, Indiana.
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