July 22, 2002

Temperature dependence of vibrational relaxation in liquid H2O

Key Points

Key points are not available for this paper at this time.

Abstract

We have determined the lifetime of the OH-stretch vibration in pure liquid water as a function of temperature using femtosecond mid-infrared pump–probe spectroscopy. The lifetime T1 increases from 260±18 fs at T=298 K to 320±18 fs at T=358 K. The increase in lifetime with temperature can be quantitatively explained from the decrease in overlap resonance between the OH-stretch vibration and the overtone of the H–O–H bending mode.

Perguntar à IA

Bookmark

Cite This Study

Lock et al. (Mon,) studied this question.

synapsesocial.com/papers/6a011c11ef8139f8ff77bca0 https://doi.org/https://doi.org/10.1063/1.1485966

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1Anomalous Temperature Dependence of Vibrational Lifetimes in Water and Ice1998 · 270 citations
2Mechanism for vibrational relaxation in water investigated by femtosecond infrared spectroscopy1999 · 218 citations
3Water: A Comprehensive Treatise1979 · 4,067 citations
4Infrared intensities of liquids. 5. Optical and dielectric constants, integrated intensities, and dipole moment derivatives of water and water-d2 at 22.degree.C1989 · 324 citations
5Direct observation of rotational relaxation times by time-resolved infrared spectroscopy1990 · 91 citations

Perguntar à IA

Bookmark