Time-resolved observation of the Eigen cation in liquid water

被引：29

作者：

Amir, Wafa

Gallot, Guilhem ^{[1
]}

Hache, Francois

Bratos, S.

Leicknam, J. -C.

Vuilleumier, R.

机构：

[1] Ecole Polytech, CNRS, INSERM, Lab Opt & Biosci, F-91128 Palaiseau, France

[2] Univ Paris 06, Phys Theor Liquides Lab, F-75252 Paris 05, France

来源：

JOURNAL OF CHEMICAL PHYSICS | 2007年 / 126卷 / 03期

关键词：

D O I：

10.1063/1.2428299

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：

Experimental observation and time relaxation measurement of the hydrated proton Eigen form [H3O+(H2O)(3)] are presented here. Vibrational time-resolved spectroscopy is used with an original method of investigating the proton excess in water. The anharmonicity of the time-resolved spectra is characteristic of the Eigen-type proton geometry. Proton relaxation occurs in less than 200 fs. A calculation of the potential energy confirms the experimental result and the Eigen cation lifetime is in good agreement with previous molecular dynamics simulations. (c) 2007 American Institute of Physics.

引用

页数：7

共 24 条

[1] THE GROTTHUSS MECHANISM [J].