Intermolecular interactions and dynamics of room temperature ionic liquids that have silyl- and siloxy-substituted imidazolium cations

Article Abstract:

The intermolecular interactions and dynamics of ionic liquids with alkylsiloxysilyl and alkylsiloxy substitutions on the cations are analyzed by using femtosecond Kerr effects methods, which as used for measuring the intermolecular vibrational spectra and reorientational dynamics. The measured ionic liquid viscosities are found to be low for bulky cation substituents.

Intermolecular forces, Vibrational spectra

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Nuclear magnetic resonance study of the dynamics of imidazolium ionic liquids with -C[H.sub.2]Si[(C[H.sub.3]).sub.3] vs -C[H.sub.2]C[(C[H.sub.3]).sub.3] substituents

Article Abstract:

Nuclear magnetic resonance (NMR) measurements are used to study the effects of silicon substitution in imidazolium ionic liquids (RTILs) and also investigate the ion dynamics. The changes in the NMR dynamical properties are correlated with the changes in viscosities in order to understand the Si-substitution effect on the viscosity of ILs.

Nuclear magnetic resonance, Azo compounds, Chemical properties

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