Ultrafast excited-state isomerization dynamics of 1,1 '-diethyl-2,2 '-cyanine studied by four-wave mixing spectroscopy
Dietzek, Benjamin LU ; Christensson, Niklas LU ; Pascher, Torbjörn LU ; Pullerits, Tönu LU and Yartsev, Arkady LU
(2007)
In The Journal of Physical Chemistry Part B
111(19).
p.5396-5404
- Abstract
- Excited-state dynamics and solvent-solute interactions of 1,1'-diethyl-2,2'-cyanine iodine (1122C) in alcoholic solutions are investigated using time-integrated three-pulse photon-echo spectroscopy. 1122C serves as a model compound for ultrafast photoinduced isomerizationa key process in the light reception of plants, bacteria, and human vision. The photoreaction in 1122C is interrogated in dependence on solvent and excitation wavelength. The wavelength-dependent three-pulse photon-echo peak shift indicates strong alterations of the reaction pathways and points to the existence of a direct internal conversion channel in close proximity to the Franck-Condon point of absorption. The solvent-dependent S-1-S-0 internal conversion time does not... (More)
- Excited-state dynamics and solvent-solute interactions of 1,1'-diethyl-2,2'-cyanine iodine (1122C) in alcoholic solutions are investigated using time-integrated three-pulse photon-echo spectroscopy. 1122C serves as a model compound for ultrafast photoinduced isomerizationa key process in the light reception of plants, bacteria, and human vision. The photoreaction in 1122C is interrogated in dependence on solvent and excitation wavelength. The wavelength-dependent three-pulse photon-echo peak shift indicates strong alterations of the reaction pathways and points to the existence of a direct internal conversion channel in close proximity to the Franck-Condon point of absorption. The solvent-dependent S-1-S-0 internal conversion time does not follow conventional sheared viscosity dependence, suggesting that the solvent local friction has to be considered to account for the observed isomerization kinetics. The concerted discussion of transient grating and three-pulse photon-echo peak-shift data allows us to derive a complete picture of the solvent-solute interaction-controlled photoreaction. The results obtained are related to other work on reactive systems and are discussed in the framework of multilevel response functions. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/664513
- author
- Dietzek, Benjamin
LU
; Christensson, Niklas
LU
; Pascher, Torbjörn
LU
; Pullerits, Tönu
LU
and Yartsev, Arkady
LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Part B
- volume
- 111
- issue
- 19
- pages
- 5396 - 5404
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000246341300051
- scopus:34249826092
- ISSN
- 1520-5207
- DOI
- 10.1021/jp0685277
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- 4bf219f1-965d-4922-bdf3-ee1a4766a5e4 (old id 664513)
- date added to LUP
- 2016-04-01 16:15:24
- date last changed
- 2022-01-28 18:23:12
@article{4bf219f1-965d-4922-bdf3-ee1a4766a5e4,
abstract = {{Excited-state dynamics and solvent-solute interactions of 1,1'-diethyl-2,2'-cyanine iodine (1122C) in alcoholic solutions are investigated using time-integrated three-pulse photon-echo spectroscopy. 1122C serves as a model compound for ultrafast photoinduced isomerizationa key process in the light reception of plants, bacteria, and human vision. The photoreaction in 1122C is interrogated in dependence on solvent and excitation wavelength. The wavelength-dependent three-pulse photon-echo peak shift indicates strong alterations of the reaction pathways and points to the existence of a direct internal conversion channel in close proximity to the Franck-Condon point of absorption. The solvent-dependent S-1-S-0 internal conversion time does not follow conventional sheared viscosity dependence, suggesting that the solvent local friction has to be considered to account for the observed isomerization kinetics. The concerted discussion of transient grating and three-pulse photon-echo peak-shift data allows us to derive a complete picture of the solvent-solute interaction-controlled photoreaction. The results obtained are related to other work on reactive systems and are discussed in the framework of multilevel response functions.}},
author = {{Dietzek, Benjamin and Christensson, Niklas and Pascher, Torbjörn and Pullerits, Tönu and Yartsev, Arkady}},
issn = {{1520-5207}},
language = {{eng}},
number = {{19}},
pages = {{5396--5404}},
publisher = {{The American Chemical Society (ACS)}},
series = {{The Journal of Physical Chemistry Part B}},
title = {{Ultrafast excited-state isomerization dynamics of 1,1 '-diethyl-2,2 '-cyanine studied by four-wave mixing spectroscopy}},
url = {{http://dx.doi.org/10.1021/jp0685277}},
doi = {{10.1021/jp0685277}},
volume = {{111}},
year = {{2007}},
}