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Solute specific polar solvation studied by photon echo spectroscopy

Christensson, Niklas LU ; Dietzek, Benjamin LU ; Yartsev, Arkady LU and Pullerits, Tönu LU (2009) In Chemical Physics 357(1-3). p.85-95
Abstract
Polar solvation dynamics Of two Solute molecules in a series of 1-alcohols has been studied using the three-pulse photon echo peak shift technique. The inertial dynamics, on sub-200 fs timescale, is essentially independent of solvent in the 1-alcohol series. For a given solute, the solvent dependence is mainly manifested in the diffusive solvation dynamics. The solute dependence appears as a significantly stronger inertial component in one of the molecules. We ascribe this solute dependence to the differences in charge redistribution upon excitation. A detailed investigation of oscillations of the peak shift reveals a solvent dependent beating that can be connected to solvation of the vibrational mode in the excited state. The solvent... (More)
Polar solvation dynamics Of two Solute molecules in a series of 1-alcohols has been studied using the three-pulse photon echo peak shift technique. The inertial dynamics, on sub-200 fs timescale, is essentially independent of solvent in the 1-alcohol series. For a given solute, the solvent dependence is mainly manifested in the diffusive solvation dynamics. The solute dependence appears as a significantly stronger inertial component in one of the molecules. We ascribe this solute dependence to the differences in charge redistribution upon excitation. A detailed investigation of oscillations of the peak shift reveals a solvent dependent beating that can be connected to solvation of the vibrational mode in the excited state. The solvent dependence of the dephasing dynamics of the excited state mode can be explained by the electronic transition frequency correlation function and the beating pattern of the echo signal originates from interference between ground and excited state Feynman pathways. (C) 2008 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Photon echo spectroscopy, Molecular vibrations, Solvation
in
Chemical Physics
volume
357
issue
1-3
pages
85 - 95
publisher
Elsevier
external identifiers
  • wos:000263851800012
  • scopus:59649085056
ISSN
0301-0104
DOI
10.1016/j.chemphys.2008.10.038
language
English
LU publication?
yes
id
cc85fc6c-4e73-49e2-8226-8584ad4b5058 (old id 1370739)
date added to LUP
2009-05-08 16:46:29
date last changed
2017-10-29 04:01:30
@article{cc85fc6c-4e73-49e2-8226-8584ad4b5058,
  abstract     = {Polar solvation dynamics Of two Solute molecules in a series of 1-alcohols has been studied using the three-pulse photon echo peak shift technique. The inertial dynamics, on sub-200 fs timescale, is essentially independent of solvent in the 1-alcohol series. For a given solute, the solvent dependence is mainly manifested in the diffusive solvation dynamics. The solute dependence appears as a significantly stronger inertial component in one of the molecules. We ascribe this solute dependence to the differences in charge redistribution upon excitation. A detailed investigation of oscillations of the peak shift reveals a solvent dependent beating that can be connected to solvation of the vibrational mode in the excited state. The solvent dependence of the dephasing dynamics of the excited state mode can be explained by the electronic transition frequency correlation function and the beating pattern of the echo signal originates from interference between ground and excited state Feynman pathways. (C) 2008 Elsevier B.V. All rights reserved.},
  author       = {Christensson, Niklas and Dietzek, Benjamin and Yartsev, Arkady and Pullerits, Tönu},
  issn         = {0301-0104},
  keyword      = {Photon echo spectroscopy,Molecular vibrations,Solvation},
  language     = {eng},
  number       = {1-3},
  pages        = {85--95},
  publisher    = {Elsevier},
  series       = {Chemical Physics},
  title        = {Solute specific polar solvation studied by photon echo spectroscopy},
  url          = {http://dx.doi.org/10.1016/j.chemphys.2008.10.038},
  volume       = {357},
  year         = {2009},
}