Back to Search
Start Over
Ultrafast vibrational energy flow in water monomers in acetonitrile.
- Source :
-
Chemical Physics Letters . May2016, Vol. 652, p50-55. 6p. - Publication Year :
- 2016
-
Abstract
- Vibrational relaxation of the OH stretching and bending modes of water monomers in acetonitrile is studied by two-color pump–probe experiments in a frequency range from 1400 to 3800 cm −1 . Measurements with resonant infrared excitation reveal vibrational lifetimes of 6.4 ± 1.0 ps of the OH stretching modes and 4.0 ± 0.5 ps of the OH bending mode. After OH stretching excitation, the OH bending mode shows an instantaneous response, a hallmark of the anharmonic coupling of stretching and bending modes, and a delayed population buildup by relaxation of the stretching via the bending mode. The relaxation steps are discussed within the framework of current theoretical pictures of water’s vibrational relaxation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00092614
- Volume :
- 652
- Database :
- Academic Search Index
- Journal :
- Chemical Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 115337732
- Full Text :
- https://doi.org/10.1016/j.cplett.2016.04.028