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Energy relaxation versus spectral diffusion of the OH-stretching vibration of HOD in liquid-to-supercritical deuterated water.
- Source :
-
The Journal of chemical physics [J Chem Phys] 2005 Oct 22; Vol. 123 (16), pp. 161105. - Publication Year :
- 2005
-
Abstract
- The dynamics of vibrational energy relaxation (VER) of the OH-stretching vibration of HOD in liquid-to-supercritical heavy water is studied as a function of temperature and solvent density by femtosecond mid-infrared spectroscopy. Using the dielectric constant of the fluid both, the OH-stretching absorption frequency and the VER rate, can be correlated phenomenologically with the average hydrogen-bond connectivity within the random D2O network. This correlation enables the identification of thermodynamic conditions under which spectral diffusion due to hydrogen-bond breakage/formation is much faster than VER.
Details
- Language :
- English
- ISSN :
- 0021-9606
- Volume :
- 123
- Issue :
- 16
- Database :
- MEDLINE
- Journal :
- The Journal of chemical physics
- Publication Type :
- Academic Journal
- Accession number :
- 16268674
- Full Text :
- https://doi.org/10.1063/1.2110087