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Vibrational population relaxation and dephasing dynamics Fe(CN)4-6 in water:: deuterium isotope effect of solvents
被引:33
作者:
Ohta, K
Maekawa, H
Tominaga, K
[1
]
机构:
[1] Kobe Univ, Grad Sch Sci & Technol, Nada Ku, Kobe, Hyogo 6578501, Japan
[2] Kobe Univ, Fac Sci, Mol Photosci Res Ctr, Dept Chem,Nada Ku, Kobe, Hyogo 6578501, Japan
[3] JST, CREST, Nada Ku, Kobe, Hyogo 6578501, Japan
基金:
日本学术振兴会;
关键词:
D O I:
10.1016/j.cplett.2003.12.119
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Femtosecond infrared transient grating and three pulse photon-echo experiments have been performed to investigate the vibrational dynamics of the CN stretching mode of Fe(CN)(6)(4-) in H2O. From the transient grating measurements, it was found that the vibrational population relaxation in H2O occurs about six times faster than that in D2O. This reflects the strong coupling to solvent modes for the vibrational relaxation. On the other hand, the photon-echo experiments have shown that the time-scales of the spectral diffusion processes are similar in H2O and D2O. (C) 2004 Elsevier B.V. All rights reserved.
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页码:32 / 37
页数:6
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