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Scholars Day: April 9, 2014

Physical Behavior of Ionic Liquids in Low Polarity Solvents

Ionic liquids are salts that are liquid below 100oC. Normally, salts do not dissolve in solvents of low polarity. However, many ionic liquids are very soluble or completely miscible in low polarity solvents and their physical chemistry is not well understood. The goal of our ongoing research is to elucidate the speciation (freely dissolved ions, ion pairs and aggregates) present for ionic liquids dissolved in solvents of low polarity. We will present experimental results for concentration and temperature dependent self-diffusion coefficients measured by NMR spectroscopy in conjunction with viscosity measurements to determine the average hydrodynamic radii of the present species. Five systems were investigated: [C6mim][NTf2] dichloromethane , tetrahydrofuran , and chlorobenzene , as well as [C4mim][NTf2] and [C2mim][NTf2] in dichloromethane.

Please note that presentation times are approximate. If you are interested in attending sessions with multiple presentations, please be in the room at the start of the session.
Presenter: Elise Cade (Undergraduate Student)
Topic: Chemistry
Location: 125 Hartwell
Time: 9 am Session I