| Issue |
EPJ Web of Conferences
Volume 41, 2013
XVIIIth International Conference on Ultrafast Phenomena
|
|
|---|---|---|
| Article Number | 06003 | |
| Number of page(s) | 3 | |
| Section | Water, Hydrogen Bonding and Hydration | |
| DOI | https://doi.org/10.1051/epjconf/20134106003 | |
| Published online | 13 March 2013 | |
https://doi.org/10.1051/epjconf/20134106003
Ultrafast vibrational dynamics of water confined in phospholipid reverse micelles
1 Max-Born-Insitut für Nichtlineare Optik und Kurzzeitspektroskopie, Berlin, Germany
2 Department of Chemistry, Colorado State University, Fort Collins, Colorado, USA
We study the ultrafast dynamics of OH stretching and bending vibrations of water inside dioleoylphosphatidylcholine (DOPC) reverse micelles in a wide range of hydration. A strong hydration level dependence for the spectral diffusion rates is found and explained by the distinctly different environment for single water molecules bound to the anionic phosphate group. We show that the energy relaxation pathway of the OH stretching vibration at low hydration level involves the OH bending.
© Owned by the authors, published by EDP Sciences, 2013
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