Probing anion–carbon dioxide interactions in room temperature ionic liquids: gas phase cluster calculations

Bhargava, B. L. ; Balasubramanian, S. (2007) Probing anion–carbon dioxide interactions in room temperature ionic liquids: gas phase cluster calculations Chemical Physics Letters, 444 (4-6). pp. 242-246. ISSN 0009-2614

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.cplett.2007.07.051

Abstract

The interaction of a CO2 molecule with different anions commonly used in room temperature ionic liquids (RTILs) has been studied under isolated conditions. Minimum energy structures obtained using density functional theory based calculations suggest the dominance of Lewis acid–base interactions between the species. In the optimized configurations, the CO2 molecule is found to adopt a non-linear geometry. The extent of the consequent split in the CO2 bending mode calculated from a Hessian analysis agrees qualitatively with vibrational spectroscopic results. The implication of CO2–anion interaction to the solubility of CO2 in RTILs is discussed.

Item Type:Article
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ID Code:96726
Deposited On:07 Jan 2013 09:15
Last Modified:07 Jan 2013 09:15

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