Alkali metal-glucose interaction probed with infrared pre-dissociation spectroscopy

Kregel, Steven J.

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https://hdl.handle.net/2142/79363 Copy

Description

Title

Alkali metal-glucose interaction probed with infrared pre-dissociation spectroscopy

Author(s)

Kregel, Steven J.

Contributor(s)

• Garand, Etienne
• Zhou, Jia
• Marsh, Brett

Issue Date

23-Jun-15

Keyword(s)

Conformers, isomers, chirality, stereochemistry

Abstract

The efficient extraction of cellulose from biomass and its subsequent conversion to glucose derivatives is an attractive goal in the field of energy science. However, current industrial methods require high ionic strength and harsh conditions. Ionic liquids (IL�s) are a class of �green� compounds that have been shown to dissolve cellulose in concentrations of up to 25 wt%. In order to understand IL�s extraordinary cellulose dissolving power, a molecular level understanding of the IL-cellulose interaction is needed. Toward that end, we have acquired infrared pre-dissociation spectra of M$^{+}$-glucose, where M$^{+}$=Li$^{+}$, Na$^{+}$, or K$^{+}$. Through comparisons with density functional theory calculations, we have determined the relative abundances of various M$^{+}$-glucose binding motifs in both the thermodynamic and kinetic limits. These results provide insight on the hydrogen bonding dynamics of glucose and are a step towards a fuller understanding of cellulose interactions with ionic liquids.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/79363

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