Diffusion in ionic liquids the interplay between molecular structure and dynamics
- Diffusion in a series of ionic liquids is investigated by a combination of Broadband Dielectric Spectroscopy (BDS) and Pulsed Field Gradient Nuclear Magnetic Resonance (PFG NMR). It is demonstrated that the mean jump lengths increase with the molecular volumes determined from quantum-chemical calculations. This provides a direct means-via Einstein-Smoluchowski relation-to determine the diffusion coefficient by BDS over more than 8 decades unambiguously and in quantitative agreement with PFG NMR measurements. New possibilities in the study of charge transport and dynamic glass transition in ionic liquids are thus opened.
| Author details: | J. R. Sangoro, C. Iacob, S. Naumov, R. Valiullin, Hans Rexhausen, J. Hunger, R. Buchner, Veronika StrehmelORCiDGND, J. Kaerger, F. Kremer |
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| DOI: | https://doi.org/10.1039/c0sm01404d |
| ISSN: | 1744-683X |
| Title of parent work (English): | Soft matter |
| Publisher: | Royal Society of Chemistry |
| Place of publishing: | Cambridge |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2011 |
| Publication year: | 2011 |
| Release date: | 2017/03/26 |
| Volume: | 7 |
| Issue: | 5 |
| Number of pages: | 4 |
| First page: | 1678 |
| Last Page: | 1681 |
| Funding institution: | Deutsche Forschungsgemeinschaft [DFG SPP 1191] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie |
| Peer review: | Referiert |
