Observation of the solvent shell reorganization around photoexcited atomic solutes by picosecond X-ray absorption spectroscopy

被引：52

作者：

Pham, Van-Thai

Gawelda, Wojciech

Zaushitsyn, Yuri

Kaiser, Maik

Grolimund, Daniel

Johnson, Steven L.

Abela, Rafael

Bressler, Christian

Chergui, Majed ^{[1
]}

机构：

[1] ISIC BSP, Ecole Polytech Fed Lausanne, Fac Sci Base, Lab Spectroscopie, CH-1015 Lausanne, Switzerland

[2] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 06期

关键词：

D O I：

10.1021/ja068466q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the observation of the solvation shell rearrangement after abstraction of the electron from aqueous I- in a laser pump/X-ray probe experiment by recording the X-ray absorption L-1- and L-3-edge spectra, 50 ps after laser excitation. The L-1-edge spectra clearly identify the I-0 neutral species after excitation and suggest a substantial amount of back-transfer of charge from the solvent species. Both edge spectra point to a significant rearrangement of the solvation shell around I-0.

引用

收藏

页码：1530 / +

页数：3

相关论文

共 15 条

[1] Ultrafast X-ray absorption spectroscopy [J].

Bressler, C ;

Chergui, M .

CHEMICAL REVIEWS, 2004, 104 (04) :1781-1812

[2] Towards structural dynamics in condensed chemical systems exploiting ultrafast time-resolved x-ray absorption spectroscopy [J].

Bressler, C ;

Saes, M ;

Chergui, M ;

Grolimund, D ;

Abela, R ;

Pattison, P .

JOURNAL OF CHEMICAL PHYSICS, 2002, 116 (07) :2955-2966

[3] Electronic and molecular structure of photoexcited [RuII(bpy)3]2+ probed by picosecond X-ray absorption spectroscopy [J].

Gawelda, W ;

Johnson, M ;

de Groot, FMF ;

Abela, R ;

Bressler, C ;

Chergui, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (15) :5001-5009

[4] Photoionization dynamics of an aqueous iodide solution: the temperature dependence [J].

Iglev, H ;

Trifonov, A ;

Thaller, A ;

Buchvarov, I ;

Fiebig, T ;

Laubereau, A .

CHEMICAL PHYSICS LETTERS, 2005, 403 (1-3) :198-204

[5] FEMTOSECOND SOLVATION DYNAMICS OF WATER [J].

JIMENEZ, R ;

FLEMING, GR ;

KUMAR, PV ;

MARONCELLI, M .

NATURE, 1994, 369 (6480) :471-473

[6] Time-resolved scavenging and recombination dynamics from l:e- caged pairs [J].

Kloepfer, JA ;

Vilchiz, VH ;

Lenchenkov, VA ;

Chen, XY ;

Bradforth, SE .

JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (02) :766-778

[7] The ejection distribution of solvated electrons generated by the one-photon photodetachment of aqueous I- and two-photon ionization of the solvent [J].

Kloepfer, JA ;

Vilchiz, VH ;

Lenchenkov, VA ;

Germaine, AC ;

Bradforth, SE .

JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (15) :6288-6307

[8] Ultrafast solvation of N-methyl-6-quinolone probes local IR spectrum [J].

Lustres, JLN ;

Kovalenko, SA ;

Mosquera, M ;

Senyushkina, T ;

Flasche, W ;

Ernsting, NP .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (35) :5635-5639

[9] THE DYNAMICS OF SOLVATION IN POLAR LIQUIDS [J].

MARONCELLI, M .

JOURNAL OF MOLECULAR LIQUIDS, 1993, 57 :1-37

[10]

Mukamel S., 1995, Principles of Nonlinear Optical Spectroscopy