Ultrafast Population Dynamics of Surface-Active Dyes during Electrochemically Controlled Ion Transfer across a Liquid|Liquid Interface

被引：7

作者：

Olaya, Astrid J. ^{[1
]}

Brevet, Pierre-Francois ^{[1
]}

Smirnov, Evgeny A. ^{[1
]}

Girault, Hubert H. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Lab Electrochim Phys & Analyt, Stn 6, CH-1015 Lausanne, Switzerland

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 43期

基金：

瑞士国家科学基金会;

关键词：

ANION METHYL-ORANGE; 2ND-HARMONIC GENERATION; OXYGEN REDUCTION; PORPHYRINS;

D O I：

10.1021/jp507585a

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：

We present for the first time experimental measurements on the ultrafast population dynamics of the model surface-active dye methyl orange (MO) during its ion transfer across the water|1,2-dichloroethane interface by using time-resolved surface second harmonic generation (TR-SSHG). The interfacial dynamics reveals that the population of MO relaxes to the ground state within 160 fs without any significant contribution of the molecular reorientation. It is concluded that the MO transfer across the interface considerably affects the population of MO at the interface but has no effect on the dynamics of the molecule itself.

引用

页码：25027 / 25031

页数：5

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