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 quantitatively be explained from the decrease in spectral overlap of the OH-stretch vibration and the overtone of the H-O-H bending mode.

Cham: Springer
R.D. Miller , M.M. Murnane , N.F. Scherer , A.M. Weiner
Ultrafast Spectroscopy

Lock, A. J., & Bakker, H. (2003). Vibrational energy relaxation in H2O. In R. D. Miller, M. M. Murnane, N. F. Scherer, & A. M. Weiner (Eds.), Springer Series in Chemical Physics (pp. 529–531).