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Issue 41, 2013
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Ultrafast imaging of electronic relaxation in o-xylene: a new competing intersystem crossing channel

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Abstract

The ultrafast dynamics of the second singlet electronically excited state (S2) in o-xylene was investigated by femtosecond time-resolved photoelectron imaging. A new competing relaxation channel of the S2 state was observed and assigned to the T3 ← S2 intersystem crossing. Interestingly, it is found that the relaxation via this channel occurs on a comparable femtosecond timescale as the S1 ← S2 internal conversion. A lifetime of ∼60 fs for the initially excited S2 state, of 540 (±17) fs for the secondary populated S1 state, and of 7.23 (±0.21) ps for the T3 state could be inferred.

Graphical abstract: Ultrafast imaging of electronic relaxation in o-xylene: a new competing intersystem crossing channel

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Article information


Submitted
17 Jul 2013
Accepted
09 Sep 2013
First published
09 Sep 2013

Phys. Chem. Chem. Phys., 2013,15, 18101-18107
Article type
Paper

Ultrafast imaging of electronic relaxation in o-xylene: a new competing intersystem crossing channel

Y. Liu, G. Knopp, P. Hemberger, Y. Sych, P. Radi, A. Bodi and T. Gerber, Phys. Chem. Chem. Phys., 2013, 15, 18101
DOI: 10.1039/C3CP53004C

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