Hydrogen bond in liquid water as a Brownian oscillator

Authors
Woutersen, S Bakker, HJ
Citation
S. Woutersen et Hj. Bakker, Hydrogen bond in liquid water as a Brownian oscillator, PHYS REV L, 83(10), 1999, pp. 2077-2080
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
10
Year of publication
1999
Pages
2077 - 2080
Database
ISI
SICI code
0031-9007(19990906)83:10<2077:HBILWA>2.0.ZU;2-T
Abstract
We present the first experimental observation of a vibrational dynamic Stok es shift. This dynamic Stokes shift is observed in a femtosecond pump-probe study on the OH-stretch vibration of HDO dissolved in D2O. We find that th e Stokes shift has a value of approximately 70 cm(-1) and occurs with a tim e constant of approximately 500 femtoseconds. The measurements can be accur ately described by modeling the hydrogen bond in liquid water as a Brownian oscillator.