INFRARED AND ULTRAVIOLET SPECTROSCOPY OF GAS-PHASE IMIDAZOLIUM AND PYRIDINIUM IONIC LIQUIDS.

Young, Justin W.

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https://hdl.handle.net/2142/79113 Copy

Description

Title

INFRARED AND ULTRAVIOLET SPECTROSCOPY OF GAS-PHASE IMIDAZOLIUM AND PYRIDINIUM IONIC LIQUIDS.

Author(s)

Young, Justin W.

Contributor(s)

• Stearns, Jaime A.
• Annesley, Christopher
• Booth, Ryan S.

Issue Date

25-Jun-15

Keyword(s)

Vibrational structure/frequencies

Abstract

Ionic liquids (ILs) are a highly variable and potentially game-changing class of molecules for a number of Air Force applications such as satellite propulsion, but the complex nature of IL structure and intermolecular interactions makes it difficult to adequately predict structure-property relationships in order to make new IL-based technology a reality. For example, methylation of imidazolium ionic liquids leads to a substantial increase in viscosity but the underlying physical mechanism is not understood. In addition, the role of hydrogen bonding in ILs, and especially its relationship to macroscopic properties, is a matter of ongoing research. Here we describe the gas-phase spectroscopy of a series of imidazolium- and pyridinium-based ILs, using a combination of infrared spectroscopy and density functional theory to establish the intermolecular interactions present in various ILs, to assess how well they are described by theory, and to relate microscopic structure to macroscopic properties.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/79113

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