Abstract
The dynamics of the second excited singlet (S2) states of jet-cooled azulene (Az) and its van der Waals complexes with one and two atoms of Ar and Xe have been investigated. Quantum interference effects due to restricted intramolecular vibrational redistribution in azulene have been reinterpreted. Lifetime shortening in the 1:1 and 1:2 complexes with Xe is attributed to an enhancement of the rate of S2-T1 intersystem crossing by the external heavy atom effect. Excitation of the complexes to states with Evib > Eb produces energy-resolved fluorescence decays which exhibit sequential intramolecular vibrational redistribution-vibrational predissociation.
| Original language | English |
|---|---|
| Pages (from-to) | 75-85 |
| Number of pages | 11 |
| Journal | Chemical Physics Letters |
| Volume | 266 |
| Issue number | 1-2 |
| Publication status | Published - Feb 21 1997 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Atomic and Molecular Physics, and Optics
Cite this
Picosecond dynamics of the S2 excited state of azulene and its van der Waals complexes with Ar and Xe. / Abou-Zied, Osama K.; Demmer, David R M; Wallace, Stephen C.; Steer, Ronald P.
In: Chemical Physics Letters, Vol. 266, No. 1-2, 21.02.1997, p. 75-85.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Picosecond dynamics of the S2 excited state of azulene and its van der Waals complexes with Ar and Xe
AU - Abou-Zied, Osama K.
AU - Demmer, David R M
AU - Wallace, Stephen C.
AU - Steer, Ronald P.
PY - 1997/2/21
Y1 - 1997/2/21
N2 - The dynamics of the second excited singlet (S2) states of jet-cooled azulene (Az) and its van der Waals complexes with one and two atoms of Ar and Xe have been investigated. Quantum interference effects due to restricted intramolecular vibrational redistribution in azulene have been reinterpreted. Lifetime shortening in the 1:1 and 1:2 complexes with Xe is attributed to an enhancement of the rate of S2-T1 intersystem crossing by the external heavy atom effect. Excitation of the complexes to states with Evib > Eb produces energy-resolved fluorescence decays which exhibit sequential intramolecular vibrational redistribution-vibrational predissociation.
AB - The dynamics of the second excited singlet (S2) states of jet-cooled azulene (Az) and its van der Waals complexes with one and two atoms of Ar and Xe have been investigated. Quantum interference effects due to restricted intramolecular vibrational redistribution in azulene have been reinterpreted. Lifetime shortening in the 1:1 and 1:2 complexes with Xe is attributed to an enhancement of the rate of S2-T1 intersystem crossing by the external heavy atom effect. Excitation of the complexes to states with Evib > Eb produces energy-resolved fluorescence decays which exhibit sequential intramolecular vibrational redistribution-vibrational predissociation.
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UR - http://www.scopus.com/inward/citedby.url?scp=0031581714&partnerID=8YFLogxK
M3 - Article
VL - 266
SP - 75
EP - 85
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 1-2
ER -