Sangoro, Joshua and Iacob, Ciprian and Naumov, S. and Valiullin, R. and Rexhausen, H. and Hunger, J. and Buchner, Richard and Strehmel, V. and Kärger, J. and Kremer, Friedrich (2011) Diffusion in ionic liquids: the interplay between molecular structure and dynamics. Soft Matter 7 (5), pp. 1678-1681.
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Diffusion in a series of ionic liqs. is investigated by a combination of Broadband Dielec. Spectroscopy (BDS) and Pulsed Field Gradient NMR (PFG NMR). It is demonstrated that the mean jump lengths increase with the mol. vols. detd. from quantum-chem. calcns. This provides a direct means-via Einstein-Smoluchowski relation-to det. the diffusion coeff. by BDS over more than 8 decades unambiguously and in quant. agreement with PFG NMR measurements. New possibilities in the study of charge transport and dynamic glass transition in ionic liqs. are thus opened.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner|
|Keywords:||ionic liq diffusion mol structure dynamics|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||06 Jun 2012 13:55|
|Last Modified:||06 Jun 2012 13:55|