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Hydrogen-Bond Dynamics in a Protic Ionic Liquid: Evidence of Large-Angle Jumps

Hunger, J., Sonnleitner, THomas, Liu, Liyuan, Buchner, Richard, Bonn, M. and Bakker, H.J. (2012) Hydrogen-Bond Dynamics in a Protic Ionic Liquid: Evidence of Large-Angle Jumps. Journal of Physical Chemistry Letters 3 (20), pp. 3034-3038.

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We study the mol. rotation of the protic room-temp. ionic liq. ethylammonium nitrate with dielec. relaxation spectroscopy and femtosecond-IR spectroscopy (fs-IR) of the ammonium N-H vibrations. The results suggest that the rotation of ethylammonium ion takes place via large angular jumps. Such nondiffusive reorientational dynamics is unique to strongly hydrogen-bonded liqs. such as water and indicates that the intermol. interaction is highly directional in this class of ionic liqs.

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Item type:Article
Institutions:Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner
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Keywords:relaxation spectroscopy
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:26529
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