Ultrafast vibrational dynamics of water confined in phospholipid reverse micelles

被引：1
|
作者：
Costard, R. [1 ]
Greve, C. [1 ]
Levinger, N. E. [2 ]
Nibbering, E. T. J. [1 ]
Elsaesser, T. [1 ]
机构：
[1] Max Born Inst Nichtlineare Opt & Kurzzeitspektros, Berlin, Germany
[2] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA
来源：
XVIIITH INTERNATIONAL CONFERENCE ON ULTRAFAST PHENOMENA | 2013年 / 41卷
关键词：
D O I：
10.1051/epjconf/20134106003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：3
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