Tracking ultrafast excited-state bond-twisting motion in solution close to the Franck-Condon point
Dietzek, Benjamin LU ; Pascher, Torbjörn LU and Yartsev, Arkady LU
(2007)
In The Journal of Physical Chemistry Part B
111(21).
p.6034-6041
- Abstract
- Applying optimal control to photoinduced trans-cis isomerization in condensed phase, the dynamics of bond-twisting motion of 1,1'-diethyl-4,4'-cyanine in methanol and propanol is revealed. The shape of the optimized pulse resulting from minimization of the photoisomer formation can be directly related to the initial excited-state dynamics in close proximity to the Franck-Condon point. The solvent viscosity-dependent ultrafast wavepacket motion is reflected in the prominent down-chirp of the optimized pulses and reveals a detailed picture of the control mechanism: The reduction of the isomer production is achieved by most efficient dumping of excited population back to the trans ground state. In the higher-viscosity solvent, propanol,... (More)
- Applying optimal control to photoinduced trans-cis isomerization in condensed phase, the dynamics of bond-twisting motion of 1,1'-diethyl-4,4'-cyanine in methanol and propanol is revealed. The shape of the optimized pulse resulting from minimization of the photoisomer formation can be directly related to the initial excited-state dynamics in close proximity to the Franck-Condon point. The solvent viscosity-dependent ultrafast wavepacket motion is reflected in the prominent down-chirp of the optimized pulses and reveals a detailed picture of the control mechanism: The reduction of the isomer production is achieved by most efficient dumping of excited population back to the trans ground state. In the higher-viscosity solvent, propanol, wavelength-dependent oscillatory features are superimposed to the overall chirp structure pointing to the importance of excited-state vibrational coherences for the dumping process. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/663005
- author
- Dietzek, Benjamin
LU
; Pascher, Torbjörn
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
- 21
- pages
- 6034 - 6041
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000246695100030
- scopus:34250319761
- ISSN
- 1520-5207
- DOI
- 10.1021/jp068652i
- 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
- 49fd8d49-ab37-4fb0-a9d1-e6200c0f2243 (old id 663005)
- date added to LUP
- 2016-04-01 17:06:06
- date last changed
- 2022-01-29 00:23:00
@article{49fd8d49-ab37-4fb0-a9d1-e6200c0f2243,
abstract = {{Applying optimal control to photoinduced trans-cis isomerization in condensed phase, the dynamics of bond-twisting motion of 1,1'-diethyl-4,4'-cyanine in methanol and propanol is revealed. The shape of the optimized pulse resulting from minimization of the photoisomer formation can be directly related to the initial excited-state dynamics in close proximity to the Franck-Condon point. The solvent viscosity-dependent ultrafast wavepacket motion is reflected in the prominent down-chirp of the optimized pulses and reveals a detailed picture of the control mechanism: The reduction of the isomer production is achieved by most efficient dumping of excited population back to the trans ground state. In the higher-viscosity solvent, propanol, wavelength-dependent oscillatory features are superimposed to the overall chirp structure pointing to the importance of excited-state vibrational coherences for the dumping process.}},
author = {{Dietzek, Benjamin and Pascher, Torbjörn and Yartsev, Arkady}},
issn = {{1520-5207}},
language = {{eng}},
number = {{21}},
pages = {{6034--6041}},
publisher = {{The American Chemical Society (ACS)}},
series = {{The Journal of Physical Chemistry Part B}},
title = {{Tracking ultrafast excited-state bond-twisting motion in solution close to the Franck-Condon point}},
url = {{http://dx.doi.org/10.1021/jp068652i}},
doi = {{10.1021/jp068652i}},
volume = {{111}},
year = {{2007}},
}