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2010
ACL
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B.Aoun, M.A.Gonzalez, J.Ollivier, M.Russina, Z.Izaola, D.L.Price, M.L.Saboungi, 'Translational and Reorientational Dynamics of an Imidazolium-Based Ionic Liquid', J. Phys. Chem. Lett. 1 2503-2507 (2010) doi:10.1021/jz100856t
We present results of parallel quasielastic neutron scattering (QENS) experiments and molecular dynamics numerical simulations for the dynamics of a prototype ionic liquid, 1-ethyl-3-methyl-imidazolium bromide. Differences and similarities with those from the crystal phase are also discussed. Both experiment and simulation demonstrate that, in the length and time scales being probed here (fractions of a nm and a few ps), the dynamics are dominated by activated translational diffusion in the liquid phase and reorientations of the ethyl groups in both solid and liquid.
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