Ultrafast dynamics of the S(1) excited state of benzene
Ultrafast dynamics of the S(1) excited state of benzene
We investigate the ultrafast intramolecular dynamics of electronically and vibrationally excited benzene using time-resolved photoelectron spectroscopy and quantum dynamics simulations. In addition to an ultrafast initial decay, we observe an oscillation between two states. We interpret this data in terms of excited state population moving away from the Franck–Condon region towards the singlet–singlet conical intersection with the ground-state, where ultrafast intersystem crossing from the initially populated singlet state to an optically dark triplet state is enhanced. Our results challenge the currently accepted view that intramolecular processes in hydrocarbons which involve a change of spin are negligibly slow
43-47
Parker, D.S.N.
59fa7b07-19ff-4bcc-b1be-5b5657c55295
Minns, R.S.
85280db4-c5a6-4a4c-82fe-75693c6a6045
Penfold, T.J.
f994ae0e-9ecf-4a78-a880-e3286fe30a38
Worth, G.A.
a7b10dee-ecfc-4f3c-98eb-52205523f8bc
Fielding, H.H.
02d57d59-c588-4c85-98de-cc74e7325649
February 2009
Parker, D.S.N.
59fa7b07-19ff-4bcc-b1be-5b5657c55295
Minns, R.S.
85280db4-c5a6-4a4c-82fe-75693c6a6045
Penfold, T.J.
f994ae0e-9ecf-4a78-a880-e3286fe30a38
Worth, G.A.
a7b10dee-ecfc-4f3c-98eb-52205523f8bc
Fielding, H.H.
02d57d59-c588-4c85-98de-cc74e7325649
Parker, D.S.N., Minns, R.S., Penfold, T.J., Worth, G.A. and Fielding, H.H.
(2009)
Ultrafast dynamics of the S(1) excited state of benzene.
Chemical Physics Letters, 469 (1-3), .
(doi:10.1016/j.cplett.2008.12.069).
Abstract
We investigate the ultrafast intramolecular dynamics of electronically and vibrationally excited benzene using time-resolved photoelectron spectroscopy and quantum dynamics simulations. In addition to an ultrafast initial decay, we observe an oscillation between two states. We interpret this data in terms of excited state population moving away from the Franck–Condon region towards the singlet–singlet conical intersection with the ground-state, where ultrafast intersystem crossing from the initially populated singlet state to an optically dark triplet state is enhanced. Our results challenge the currently accepted view that intramolecular processes in hydrocarbons which involve a change of spin are negligibly slow
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e-pub ahead of print date: 25 December 2008
Published date: February 2009
Additional Information:
Times Cited: 12
Organisations:
Chemistry
Identifiers
Local EPrints ID: 336633
URI: http://eprints.soton.ac.uk/id/eprint/336633
ISSN: 0009-2614
PURE UUID: 0ff56749-316e-46cc-aef6-db0704c5540c
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Date deposited: 02 Apr 2012 10:43
Last modified: 15 Mar 2024 03:40
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Contributors
Author:
D.S.N. Parker
Author:
T.J. Penfold
Author:
G.A. Worth
Author:
H.H. Fielding
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